diff --git a/developer/docs/help/reference/kmc/cli/reference.md b/developer/docs/help/reference/kmc/cli/reference.md
index bff696d0d0d..51a28f4fc58 100644
--- a/developer/docs/help/reference/kmc/cli/reference.md
+++ b/developer/docs/help/reference/kmc/cli/reference.md
@@ -280,6 +280,14 @@ Note: paths shown above may vary.
 
 : Result file to write to (.json, .md, or .txt)
 
+`-i, --input-mapping-file <filename>`
+
+: Merge result file with existing mapping file. If supplied, existing
+  codepoint mappings will be kept, to ensure that updated fonts are
+  backwardly compatible with deployed keyboards. The
+  `--include-counts` flag will be set according to the format of
+  the input mapping file.
+
 For more information on the purpose of `analyze osk-char-use` and
 `analyze rewrite-osk-from-char-use`, see
 [`&displayMap`](/developer/language/reference/displaymap).
diff --git a/developer/src/kmc-analyze/build.sh b/developer/src/kmc-analyze/build.sh
index cb7b79449be..a4844c6afc9 100755
--- a/developer/src/kmc-analyze/build.sh
+++ b/developer/src/kmc-analyze/build.sh
@@ -27,10 +27,11 @@ builder_parse "$@"
 
 function do_test() {
   eslint .
-  # TODO: enable tests
-  #     cd test && tsc --build && cd .. && mocha
-  # TODO: enable c8 (disabled because no coverage at present)
-  #     c8 --reporter=lcov --reporter=text --exclude-after-remap mocha
+  cd test
+  tsc --build
+  cd ..
+  readonly C8_THRESHOLD=70
+  c8 --reporter=lcov --reporter=text --lines $C8_THRESHOLD --statements $C8_THRESHOLD --branches $C8_THRESHOLD --functions $C8_THRESHOLD mocha
 }
 
 builder_run_action clean      rm -rf ./build/
diff --git a/developer/src/kmc-analyze/package.json b/developer/src/kmc-analyze/package.json
index 8577ed25b33..6299bf3a58c 100644
--- a/developer/src/kmc-analyze/package.json
+++ b/developer/src/kmc-analyze/package.json
@@ -36,6 +36,12 @@
     "mocha": "^8.4.0",
     "typescript": "^5.4.5"
   },
+  "mocha": {
+    "spec": "build/test/**/test-*.js",
+    "require": [
+      "source-map-support/register"
+    ]
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/keymanapp/keyman.git"
diff --git a/developer/src/kmc-analyze/src/analyzer-messages.ts b/developer/src/kmc-analyze/src/analyzer-messages.ts
index c895a2f3675..28e280b8082 100644
--- a/developer/src/kmc-analyze/src/analyzer-messages.ts
+++ b/developer/src/kmc-analyze/src/analyzer-messages.ts
@@ -1,9 +1,12 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ */
 import { CompilerErrorNamespace, CompilerErrorSeverity, CompilerMessageSpec as m, CompilerMessageDef as def, CompilerMessageSpecWithException, KeymanUrls } from "@keymanapp/developer-utils";
 
 const Namespace = CompilerErrorNamespace.Analyzer;
 const SevInfo = CompilerErrorSeverity.Info | Namespace;
 // const SevHint = CompilerErrorSeverity.Hint | Namespace;
-// const SevWarn = CompilerErrorSeverity.Warn | Namespace;
+const SevWarn = CompilerErrorSeverity.Warn | Namespace;
 // const SevError = CompilerErrorSeverity.Error | Namespace;
 const SevFatal = CompilerErrorSeverity.Fatal | Namespace;
 
@@ -28,4 +31,29 @@ export class AnalyzerMessages {
     `Scanning ${def(o.type)} file ${def(o.name)}`,
     `Informative message reporting on the current file being scanned`
   );
+
+  static readonly WARN_PreviousMapFileCouldNotBeLoaded = SevWarn | 0x0003;
+  static readonly Warn_PreviousMapFileCouldNotBeLoaded = (o:{filename: string}) => m(
+    this.WARN_PreviousMapFileCouldNotBeLoaded,
+    `The map file ${def(o.filename)} is missing or not a valid JSON map file`,
+  );
+
+  static readonly WARN_PreviousMapFileCouldNotBeLoadedDueToError = SevWarn | 0x0004;
+  static readonly Warn_PreviousMapFileCouldNotBeLoadedDueToError = (o:{filename: string, e: any}) => m(
+    this.WARN_PreviousMapFileCouldNotBeLoadedDueToError,
+    `The map file ${def(o.filename)} could not be loaded due to ${def(o.e ?? 'unknown error')}`,
+  );
+
+  static readonly WARN_PreviousMapDidNotIncludeCounts = SevWarn | 0x0005;
+  static readonly Warn_PreviousMapDidNotIncludeCounts = (o:{filename: string}) => m(
+    this.WARN_PreviousMapDidNotIncludeCounts,
+    `The map file ${def(o.filename)} did not include counts. Changing includeCounts option to 'false' to match`,
+  );
+
+  static readonly WARN_PreviousMapDidIncludeCounts = SevWarn | 0x0006;
+  static readonly Warn_PreviousMapDidIncludeCounts = (o:{filename: string}) => m(
+    this.WARN_PreviousMapDidIncludeCounts,
+    `The map file ${def(o.filename)} did include counts. Changing includeCounts option to 'true' to match`,
+  );
+
 };
diff --git a/developer/src/kmc-analyze/src/osk-character-use/index.ts b/developer/src/kmc-analyze/src/osk-character-use/index.ts
index 36fbf0e78cd..ad97a32e45a 100644
--- a/developer/src/kmc-analyze/src/osk-character-use/index.ts
+++ b/developer/src/kmc-analyze/src/osk-character-use/index.ts
@@ -1,3 +1,6 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ */
 import { KeymanFileTypes, TouchLayout } from "@keymanapp/common-types";
 import { KmnCompilerMessages, Osk } from '@keymanapp/kmc-kmn';
 import { CompilerCallbacks, escapeMarkdownChar, KvksFile, KvksFileReader, TouchLayoutFileReader } from '@keymanapp/developer-utils';
@@ -26,6 +29,10 @@ export interface AnalyzeOskCharacterUseOptions {
    * source file
    */
   includeCounts?: boolean;
+  /**
+   * Filename of an existing mapping file to merge the results into
+   */
+  mergeMapFile?: string;
 }
 
 const defaultOptions: AnalyzeOskCharacterUseOptions = {
@@ -233,17 +240,45 @@ export class AnalyzeOskCharacterUse {
   // Results reporting
   //
 
-  private prepareResults(strings: StringRefUsageMap): Osk.StringResult[] {
-    let result: Osk.StringResult[] = [];
-    let pua = this.options.puaBase;
+  private prepareResults(previousMap: Osk.StringResult[], strings: StringRefUsageMap): Osk.StringResult[] {
+
+    // https://stackoverflow.com/a/1584377/1836776 - because we need to compare
+    // objects, we can't use Set
+    const mergeArrays = (a: any, b: any, predicate = (a:any, b:any) => a === b) => {
+      const c = [...a]; // copy to avoid side effects
+      // add all items from B to copy C if they're not already present
+      b.forEach((bItem: any) => (c.some((cItem) => predicate(bItem, cItem)) ? null : c.push(bItem)))
+      return c;
+    }
+
+    if(!previousMap) {
+      previousMap = [];
+    }
+
+    let result: Osk.StringResult[] = [...previousMap];
+
+    // Note: we are assuming same base as previous runs
+    let pua = Math.max(this.options.puaBase, ...previousMap.map(item => parseInt(item.pua,16) + 1));
+
     for(let str of Object.keys(strings)) {
-      result.push({
-        pua: pua.toString(16).toUpperCase(),
-        str,
-        unicode: AnalyzeOskCharacterUse.stringToUnicodeSequence(str, false),
-        usages: this.options.includeCounts ? strings[str] : strings[str].map(item => item.filename)
-      });
-      pua++;
+      const r = result.find(item => item.str == str);
+      if(!r) {
+        result.push({
+          pua: pua.toString(16).toUpperCase(),
+          str,
+          unicode: AnalyzeOskCharacterUse.stringToUnicodeSequence(str, false),
+          usages: this.options.includeCounts ? strings[str] : strings[str].map(item => item.filename)
+        });
+        pua++;
+      } else {
+        if(this.options.includeCounts) {
+          // merge StringUsageRefs
+          r.usages = mergeArrays(r.usages, strings[str], (a: Osk.StringRefUsage, b: Osk.StringRefUsage) => a.filename === b.filename);
+        } else {
+          // merge strings
+          r.usages = mergeArrays(r.usages, strings[str].map(item => item.filename));
+        }
+      }
     }
     return result;
   }
@@ -273,7 +308,8 @@ export class AnalyzeOskCharacterUse {
    *           parameter.
    */
   public getStrings(format?: '.txt'|'.md'|'.json'): string[] {
-    const final = this.prepareResults(this._strings);
+    const previousMap = this.loadPreviousMap(this.options.mergeMapFile);
+    const final = this.prepareResults(previousMap, this._strings);
     switch(format) {
       case '.md':
         return AnalyzeOskCharacterUse.getStringsAsMarkdown(final);
@@ -283,6 +319,49 @@ export class AnalyzeOskCharacterUse {
     return AnalyzeOskCharacterUse.getStringsAsText(final);
   }
 
+  /**
+   * Load a JSON-format result file to merge from
+   * @param filename
+   * @returns
+   */
+  private loadPreviousMap(filename: string): Osk.StringResult[] {
+    if(!filename) {
+      return null;
+    }
+
+    const data = this.callbacks.loadFile(filename);
+    if(!data) {
+      this.callbacks.reportMessage(AnalyzerMessages.Warn_PreviousMapFileCouldNotBeLoaded({filename}));
+      return null;
+    }
+    let json: any;
+    try {
+      json = JSON.parse(new TextDecoder().decode(data));
+      if(!json || typeof json != 'object' || !Array.isArray(json.map)) {
+        this.callbacks.reportMessage(AnalyzerMessages.Warn_PreviousMapFileCouldNotBeLoaded({filename}));
+        return null;
+      }
+    } catch(e) {
+      this.callbacks.reportMessage(AnalyzerMessages.Warn_PreviousMapFileCouldNotBeLoadedDueToError({filename, e}));
+      return null;
+    }
+
+    const map: Osk.StringResult[] = json.map;
+    const usages = map.find(item => item?.usages?.length).usages;
+    if(usages) {
+      if(typeof usages[0] == 'string' && this.options.includeCounts) {
+        this.callbacks.reportMessage(AnalyzerMessages.Warn_PreviousMapDidNotIncludeCounts({filename}));
+        this.options.includeCounts = false;
+      } else if(typeof usages[0] != 'string' && !this.options.includeCounts) {
+        this.callbacks.reportMessage(AnalyzerMessages.Warn_PreviousMapDidIncludeCounts({filename}));
+        this.options.includeCounts = true;
+      }
+    }
+
+    return map;
+  }
+
+
   // Following functions are static so that we can keep them pure
   // and potentially refactor into separate reporting class later
 
diff --git a/developer/src/kmc-analyze/test/fixtures/khmer/KbdKhmr-with-sil_khmer.json b/developer/src/kmc-analyze/test/fixtures/khmer/KbdKhmr-with-sil_khmer.json
new file mode 100644
index 00000000000..71e31deff97
--- /dev/null
+++ b/developer/src/kmc-analyze/test/fixtures/khmer/KbdKhmr-with-sil_khmer.json
@@ -0,0 +1,2697 @@
+{
+  "map": [
+    {
+      "pua": "F100",
+      "str": "0",
+      "unicode": "0030",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F101",
+      "str": "1",
+      "unicode": "0031",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F102",
+      "str": "2",
+      "unicode": "0032",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F103",
+      "str": "3",
+      "unicode": "0033",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F104",
+      "str": "4",
+      "unicode": "0034",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F105",
+      "str": "5",
+      "unicode": "0035",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F106",
+      "str": "6",
+      "unicode": "0036",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F107",
+      "str": "7",
+      "unicode": "0037",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F108",
+      "str": "8",
+      "unicode": "0038",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F109",
+      "str": "9",
+      "unicode": "0039",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F10A",
+      "str": "ឆ",
+      "unicode": "1786",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F10B",
+      "str": "ឈ",
+      "unicode": "1788",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F10C",
+      "str": "្ឆ",
+      "unicode": "17D2 1786",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F10D",
+      "str": "្ឈ",
+      "unicode": "17D2 1788",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F10E",
+      "str": "ឹ",
+      "unicode": "17B9",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F10F",
+      "str": "ឺ",
+      "unicode": "17BA",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F110",
+      "str": "េ",
+      "unicode": "17C1",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F111",
+      "str": "ែ",
+      "unicode": "17C2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F112",
+      "str": "ៃ",
+      "unicode": "17C3",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F113",
+      "str": "េះ",
+      "unicode": "17C1 17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F114",
+      "str": "ឯ",
+      "unicode": "17AF",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F115",
+      "str": "ឰ",
+      "unicode": "17B0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F116",
+      "str": "រ",
+      "unicode": "179A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F117",
+      "str": "្រ",
+      "unicode": "17D2 179A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F118",
+      "str": "ឫ",
+      "unicode": "17AB",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F119",
+      "str": "ឬ",
+      "unicode": "17AC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F11A",
+      "str": "ត",
+      "unicode": "178F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F11B",
+      "str": "ទ",
+      "unicode": "1791",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F11C",
+      "str": "្ត",
+      "unicode": "17D2 178F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F11D",
+      "str": "្ទ",
+      "unicode": "17D2 1791",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F11E",
+      "str": "យ",
+      "unicode": "1799",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F11F",
+      "str": "្យ",
+      "unicode": "17D2 1799",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F120",
+      "str": "ុ",
+      "unicode": "17BB",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F121",
+      "str": "ូ",
+      "unicode": "17BC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F122",
+      "str": "ួ",
+      "unicode": "17BD",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F123",
+      "str": "ឧ",
+      "unicode": "17A7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F124",
+      "str": "ឪ",
+      "unicode": "17AA",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F125",
+      "str": "ឩ",
+      "unicode": "17A9",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F126",
+      "str": "ឨ",
+      "unicode": "17A8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F127",
+      "str": "ិ",
+      "unicode": "17B7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F128",
+      "str": "ី",
+      "unicode": "17B8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F129",
+      "str": "ឥ",
+      "unicode": "17A5",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F12A",
+      "str": "ឦ",
+      "unicode": "17A6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F12B",
+      "str": "ោ",
+      "unicode": "17C4",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12C",
+      "str": "ៅ",
+      "unicode": "17C5",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F12D",
+      "str": "ៀ",
+      "unicode": "17C0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F12E",
+      "str": "ឿ",
+      "unicode": "17BF",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F12F",
+      "str": "ោះ",
+      "unicode": "17C4 17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F130",
+      "str": "ឱ",
+      "unicode": "17B1",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F131",
+      "str": "ឲ",
+      "unicode": "17B2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F132",
+      "str": "ឳ",
+      "unicode": "17B3",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F133",
+      "str": "ផ",
+      "unicode": "1795",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F134",
+      "str": "ភ",
+      "unicode": "1797",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F135",
+      "str": "្ផ",
+      "unicode": "17D2 1795",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F136",
+      "str": "្ភ",
+      "unicode": "17D2 1797",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F137",
+      "str": "ា",
+      "unicode": "17B6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F138",
+      "str": "ាំ",
+      "unicode": "17B6 17C6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F139",
+      "str": "ស",
+      "unicode": "179F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F13A",
+      "str": "្ស",
+      "unicode": "17D2 179F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F13B",
+      "str": "ឝ",
+      "unicode": "179D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F13C",
+      "str": "ឞ",
+      "unicode": "179E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F13D",
+      "str": "ដ",
+      "unicode": "178A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F13E",
+      "str": "ឌ",
+      "unicode": "178C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F13F",
+      "str": "្ដ",
+      "unicode": "17D2 178A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F140",
+      "str": "្ឌ",
+      "unicode": "17D2 178C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F141",
+      "str": "ថ",
+      "unicode": "1790",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F142",
+      "str": "ធ",
+      "unicode": "1792",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F143",
+      "str": "្ថ",
+      "unicode": "17D2 1790",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F144",
+      "str": "្ធ",
+      "unicode": "17D2 1792",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F145",
+      "str": "ង",
+      "unicode": "1784",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F146",
+      "str": "អ",
+      "unicode": "17A2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F147",
+      "str": "្ង",
+      "unicode": "17D2 1784",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F148",
+      "str": "្អ",
+      "unicode": "17D2 17A2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F149",
+      "str": "ហ",
+      "unicode": "17A0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F14A",
+      "str": "្ហ",
+      "unicode": "17D2 17A0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F14B",
+      "str": "ះ",
+      "unicode": "17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F14C",
+      "str": "ៈ",
+      "unicode": "17C8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F14D",
+      "str": "ញ",
+      "unicode": "1789",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F14E",
+      "str": "្ញ",
+      "unicode": "17D2 1789",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F14F",
+      "str": "ក",
+      "unicode": "1780",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F150",
+      "str": "គ",
+      "unicode": "1782",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F151",
+      "str": "្ក",
+      "unicode": "17D2 1780",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F152",
+      "str": "្គ",
+      "unicode": "17D2 1782",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F153",
+      "str": "ល",
+      "unicode": "179B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F154",
+      "str": "ឡ",
+      "unicode": "17A1",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F155",
+      "str": "្ល",
+      "unicode": "17D2 179B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F156",
+      "str": "ឭ",
+      "unicode": "17AD",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F157",
+      "str": "ឮ",
+      "unicode": "17AE",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F158",
+      "str": "ើ",
+      "unicode": "17BE",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F159",
+      "str": "ឋ",
+      "unicode": "178B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F15A",
+      "str": "ឍ",
+      "unicode": "178D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F15B",
+      "str": "្ឋ",
+      "unicode": "17D2 178B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F15C",
+      "str": "្ឍ",
+      "unicode": "17D2 178D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F15D",
+      "str": "ខ",
+      "unicode": "1781",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F15E",
+      "str": "ឃ",
+      "unicode": "1783",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F15F",
+      "str": "្ខ",
+      "unicode": "17D2 1781",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F160",
+      "str": "្ឃ",
+      "unicode": "17D2 1783",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F161",
+      "str": "ច",
+      "unicode": "1785",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F162",
+      "str": "ជ",
+      "unicode": "1787",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F163",
+      "str": "្ច",
+      "unicode": "17D2 1785",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F164",
+      "str": "្ជ",
+      "unicode": "17D2 1787",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F165",
+      "str": "វ",
+      "unicode": "179C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F166",
+      "str": "្វ",
+      "unicode": "17D2 179C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F167",
+      "str": "ប",
+      "unicode": "1794",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F168",
+      "str": "ព",
+      "unicode": "1796",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F169",
+      "str": "្ប",
+      "unicode": "17D2 1794",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F16A",
+      "str": "្ព",
+      "unicode": "17D2 1796",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F16B",
+      "str": "ន",
+      "unicode": "1793",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F16C",
+      "str": "ណ",
+      "unicode": "178E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F16D",
+      "str": "្ន",
+      "unicode": "17D2 1793",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F16E",
+      "str": "្ណ",
+      "unicode": "17D2 178E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F16F",
+      "str": "ម",
+      "unicode": "1798",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F170",
+      "str": "្ម",
+      "unicode": "17D2 1798",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F171",
+      "str": "ំ",
+      "unicode": "17C6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F172",
+      "str": "ុំ",
+      "unicode": "17BB 17C6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F173",
+      "str": "ុះ",
+      "unicode": "17BB 17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F174",
+      "str": "៍",
+      "unicode": "17CD",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
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+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C4",
+      "str": "≥",
+      "unicode": "2265",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1C5",
+      "str": "៖",
+      "unicode": "17D6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1C6",
+      "str": ":",
+      "unicode": "003A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C7",
+      "str": ";",
+      "unicode": "003B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1C8",
+      "str": "…",
+      "unicode": "2026",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1C9",
+      "str": "*Sp*​",
+      "unicode": "002A 0053 0070 002A 200B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1CA",
+      "str": "្",
+      "unicode": "17D2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1CB",
+      "str": "​",
+      "unicode": "200B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CC",
+      "str": "‌",
+      "unicode": "200C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CD",
+      "str": "€",
+      "unicode": "20AC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CE",
+      "str": "≈",
+      "unicode": "2248",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CF",
+      "str": "‍",
+      "unicode": "200D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D0",
+      "str": "៘",
+      "unicode": "17D8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1D1",
+      "str": ",",
+      "unicode": "002C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1D2",
+      "str": ".",
+      "unicode": "002E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D3",
+      "str": "",
+      "unicode": "",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D4",
+      "str": "\"",
+      "unicode": "0022",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D5",
+      "str": "៸",
+      "unicode": "17F8",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1D6",
+      "str": "៰",
+      "unicode": "17F0",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1D7",
+      "str": "៱",
+      "unicode": "17F1",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1D8",
+      "str": "៲",
+      "unicode": "17F2",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1D9",
+      "str": "៳",
+      "unicode": "17F3",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1DA",
+      "str": "៴",
+      "unicode": "17F4",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1DB",
+      "str": "៵",
+      "unicode": "17F5",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1DC",
+      "str": "៶",
+      "unicode": "17F6",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1DD",
+      "str": "៷",
+      "unicode": "17F7",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1DE",
+      "str": "៹",
+      "unicode": "17F9",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1DF",
+      "str": "᧿",
+      "unicode": "19FF",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E0",
+      "str": "᧾",
+      "unicode": "19FE",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E1",
+      "str": "᧪",
+      "unicode": "19EA",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E2",
+      "str": "᧫",
+      "unicode": "19EB",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E3",
+      "str": "᧶",
+      "unicode": "19F6",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E4",
+      "str": "᧵",
+      "unicode": "19F5",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E5",
+      "str": "᧬",
+      "unicode": "19EC",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E6",
+      "str": "᧷",
+      "unicode": "19F7",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E7",
+      "str": "᧥",
+      "unicode": "19E5",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E8",
+      "str": "᧸",
+      "unicode": "19F8",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1E9",
+      "str": "᧡",
+      "unicode": "19E1",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1EA",
+      "str": "᧻",
+      "unicode": "19FB",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1EB",
+      "str": "᧹",
+      "unicode": "19F9",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1EC",
+      "str": "᧮",
+      "unicode": "19EE",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1ED",
+      "str": "᧢",
+      "unicode": "19E2",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1EE",
+      "str": "᧯",
+      "unicode": "19EF",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1EF",
+      "str": "᧰",
+      "unicode": "19F0",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F0",
+      "str": "᧦",
+      "unicode": "19E6",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F1",
+      "str": "᧱",
+      "unicode": "19F1",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F2",
+      "str": "᧤",
+      "unicode": "19E4",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F3",
+      "str": "᧭",
+      "unicode": "19ED",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F4",
+      "str": "᧣",
+      "unicode": "19E3",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F5",
+      "str": "᧧",
+      "unicode": "19E7",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F6",
+      "str": "᧠",
+      "unicode": "19E0",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F7",
+      "str": "᧺",
+      "unicode": "19FA",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F8",
+      "str": "᧲",
+      "unicode": "19F2",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1F9",
+      "str": "᧳",
+      "unicode": "19F3",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1FA",
+      "str": "᧴",
+      "unicode": "19F4",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1FB",
+      "str": "᧩",
+      "unicode": "19E9",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1FC",
+      "str": "᧨",
+      "unicode": "19E8",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1FD",
+      "str": "᧼",
+      "unicode": "19FC",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1FE",
+      "str": "᧽",
+      "unicode": "19FD",
+      "usages": [
+        "khmer_angkor.kvks",
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F1FF",
+      "str": "ឲ្យ",
+      "unicode": "17B2 17D2 1799",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F200",
+      "str": "ខ្ញុំ",
+      "unicode": "1781 17D2 1789 17BB 17C6",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F201",
+      "str": "space",
+      "unicode": "0073 0070 0061 0063 0065",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F202",
+      "str": "hair",
+      "unicode": "0068 0061 0069 0072",
+      "usages": [
+        "sil_khmer.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F203",
+      "str": "ZWNJ",
+      "unicode": "005A 0057 004E 004A",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F204",
+      "str": "thin",
+      "unicode": "0074 0068 0069 006E",
+      "usages": [
+        "sil_khmer.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F205",
+      "str": "4em",
+      "unicode": "0034 0065 006D",
+      "usages": [
+        "sil_khmer.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F206",
+      "str": "en",
+      "unicode": "0065 006E",
+      "usages": [
+        "sil_khmer.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F207",
+      "str": "Zero width space",
+      "unicode": "005A 0065 0072 006F 0020 0077 0069 0064 0074 0068 0020 0073 0070 0061 0063 0065",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F208",
+      "str": "ZWJ",
+      "unicode": "005A 0057 004A",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F209",
+      "str": "ឣ",
+      "unicode": "17A3",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F20A",
+      "str": "ឤ",
+      "unicode": "17A4",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F20B",
+      "str": "឴",
+      "unicode": "17B4",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F20C",
+      "str": "឵",
+      "unicode": "17B5",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F20D",
+      "str": "‹",
+      "unicode": "2039",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F20E",
+      "str": "›",
+      "unicode": "203A",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F20F",
+      "str": "default",
+      "unicode": "0064 0065 0066 0061 0075 006C 0074",
+      "usages": [
+        "sil_khmer.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F210",
+      "str": "Four-per-em space",
+      "unicode": "0046 006F 0075 0072 002D 0070 0065 0072 002D 0065 006D 0020 0073 0070 0061 0063 0065",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F211",
+      "str": "En space",
+      "unicode": "0045 006E 0020 0073 0070 0061 0063 0065",
+      "usages": [
+        "sil_khmer.keyman-touch-layout",
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F212",
+      "str": "Hair space",
+      "unicode": "0048 0061 0069 0072 0020 0073 0070 0061 0063 0065",
+      "usages": [
+        "sil_khmer.kvks"
+      ]
+    },
+    {
+      "pua": "F213",
+      "str": "Thin space",
+      "unicode": "0054 0068 0069 006E 0020 0073 0070 0061 0063 0065",
+      "usages": [
+        "sil_khmer.kvks"
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/developer/src/kmc-analyze/test/fixtures/khmer/KbdKhmr.json b/developer/src/kmc-analyze/test/fixtures/khmer/KbdKhmr.json
new file mode 100644
index 00000000000..464507ed2ec
--- /dev/null
+++ b/developer/src/kmc-analyze/test/fixtures/khmer/KbdKhmr.json
@@ -0,0 +1,2187 @@
+{
+  "map": [
+    {
+      "pua": "F100",
+      "str": "0",
+      "unicode": "0030",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F101",
+      "str": "1",
+      "unicode": "0031",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F102",
+      "str": "2",
+      "unicode": "0032",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F103",
+      "str": "3",
+      "unicode": "0033",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F104",
+      "str": "4",
+      "unicode": "0034",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F105",
+      "str": "5",
+      "unicode": "0035",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F106",
+      "str": "6",
+      "unicode": "0036",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F107",
+      "str": "7",
+      "unicode": "0037",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F108",
+      "str": "8",
+      "unicode": "0038",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F109",
+      "str": "9",
+      "unicode": "0039",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F10A",
+      "str": "ឆ",
+      "unicode": "1786",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F10B",
+      "str": "ឈ",
+      "unicode": "1788",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F10C",
+      "str": "្ឆ",
+      "unicode": "17D2 1786",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F10D",
+      "str": "្ឈ",
+      "unicode": "17D2 1788",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F10E",
+      "str": "ឹ",
+      "unicode": "17B9",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F10F",
+      "str": "ឺ",
+      "unicode": "17BA",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F110",
+      "str": "េ",
+      "unicode": "17C1",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F111",
+      "str": "ែ",
+      "unicode": "17C2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F112",
+      "str": "ៃ",
+      "unicode": "17C3",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F113",
+      "str": "េះ",
+      "unicode": "17C1 17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F114",
+      "str": "ឯ",
+      "unicode": "17AF",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F115",
+      "str": "ឰ",
+      "unicode": "17B0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F116",
+      "str": "រ",
+      "unicode": "179A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F117",
+      "str": "្រ",
+      "unicode": "17D2 179A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F118",
+      "str": "ឫ",
+      "unicode": "17AB",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F119",
+      "str": "ឬ",
+      "unicode": "17AC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F11A",
+      "str": "ត",
+      "unicode": "178F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F11B",
+      "str": "ទ",
+      "unicode": "1791",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F11C",
+      "str": "្ត",
+      "unicode": "17D2 178F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F11D",
+      "str": "្ទ",
+      "unicode": "17D2 1791",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F11E",
+      "str": "យ",
+      "unicode": "1799",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F11F",
+      "str": "្យ",
+      "unicode": "17D2 1799",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F120",
+      "str": "ុ",
+      "unicode": "17BB",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F121",
+      "str": "ូ",
+      "unicode": "17BC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F122",
+      "str": "ួ",
+      "unicode": "17BD",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F123",
+      "str": "ឧ",
+      "unicode": "17A7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F124",
+      "str": "ឪ",
+      "unicode": "17AA",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F125",
+      "str": "ឩ",
+      "unicode": "17A9",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F126",
+      "str": "ឨ",
+      "unicode": "17A8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F127",
+      "str": "ិ",
+      "unicode": "17B7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F128",
+      "str": "ី",
+      "unicode": "17B8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F129",
+      "str": "ឥ",
+      "unicode": "17A5",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12A",
+      "str": "ឦ",
+      "unicode": "17A6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12B",
+      "str": "ោ",
+      "unicode": "17C4",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12C",
+      "str": "ៅ",
+      "unicode": "17C5",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12D",
+      "str": "ៀ",
+      "unicode": "17C0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12E",
+      "str": "ឿ",
+      "unicode": "17BF",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F12F",
+      "str": "ោះ",
+      "unicode": "17C4 17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F130",
+      "str": "ឱ",
+      "unicode": "17B1",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F131",
+      "str": "ឲ",
+      "unicode": "17B2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F132",
+      "str": "ឳ",
+      "unicode": "17B3",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F133",
+      "str": "ផ",
+      "unicode": "1795",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F134",
+      "str": "ភ",
+      "unicode": "1797",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F135",
+      "str": "្ផ",
+      "unicode": "17D2 1795",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F136",
+      "str": "្ភ",
+      "unicode": "17D2 1797",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F137",
+      "str": "ា",
+      "unicode": "17B6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F138",
+      "str": "ាំ",
+      "unicode": "17B6 17C6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F139",
+      "str": "ស",
+      "unicode": "179F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F13A",
+      "str": "្ស",
+      "unicode": "17D2 179F",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F13B",
+      "str": "ឝ",
+      "unicode": "179D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F13C",
+      "str": "ឞ",
+      "unicode": "179E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F13D",
+      "str": "ដ",
+      "unicode": "178A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F13E",
+      "str": "ឌ",
+      "unicode": "178C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F13F",
+      "str": "្ដ",
+      "unicode": "17D2 178A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F140",
+      "str": "្ឌ",
+      "unicode": "17D2 178C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F141",
+      "str": "ថ",
+      "unicode": "1790",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F142",
+      "str": "ធ",
+      "unicode": "1792",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F143",
+      "str": "្ថ",
+      "unicode": "17D2 1790",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F144",
+      "str": "្ធ",
+      "unicode": "17D2 1792",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F145",
+      "str": "ង",
+      "unicode": "1784",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F146",
+      "str": "អ",
+      "unicode": "17A2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F147",
+      "str": "្ង",
+      "unicode": "17D2 1784",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F148",
+      "str": "្អ",
+      "unicode": "17D2 17A2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F149",
+      "str": "ហ",
+      "unicode": "17A0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F14A",
+      "str": "្ហ",
+      "unicode": "17D2 17A0",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F14B",
+      "str": "ះ",
+      "unicode": "17C7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F14C",
+      "str": "ៈ",
+      "unicode": "17C8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F14D",
+      "str": "ញ",
+      "unicode": "1789",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F14E",
+      "str": "្ញ",
+      "unicode": "17D2 1789",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F14F",
+      "str": "ក",
+      "unicode": "1780",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F150",
+      "str": "គ",
+      "unicode": "1782",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F151",
+      "str": "្ក",
+      "unicode": "17D2 1780",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F152",
+      "str": "្គ",
+      "unicode": "17D2 1782",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F153",
+      "str": "ល",
+      "unicode": "179B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F154",
+      "str": "ឡ",
+      "unicode": "17A1",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F155",
+      "str": "្ល",
+      "unicode": "17D2 179B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F156",
+      "str": "ឭ",
+      "unicode": "17AD",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F157",
+      "str": "ឮ",
+      "unicode": "17AE",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F158",
+      "str": "ើ",
+      "unicode": "17BE",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F159",
+      "str": "ឋ",
+      "unicode": "178B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F15A",
+      "str": "ឍ",
+      "unicode": "178D",
+      "usages": [
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+      "pua": "F1B7",
+      "str": "[",
+      "unicode": "005B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1B8",
+      "str": "]",
+      "unicode": "005D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1B9",
+      "str": "{",
+      "unicode": "007B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1BA",
+      "str": "}",
+      "unicode": "007D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1BB",
+      "str": "៙",
+      "unicode": "17D9",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1BC",
+      "str": "៚",
+      "unicode": "17DA",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1BD",
+      "str": "ៜ",
+      "unicode": "17DC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1BE",
+      "str": "§",
+      "unicode": "00A7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1BF",
+      "str": "Ø",
+      "unicode": "00D8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1C0",
+      "str": "ៗ",
+      "unicode": "17D7",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C1",
+      "str": "<",
+      "unicode": "003C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C2",
+      "str": "≤",
+      "unicode": "2264",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1C3",
+      "str": ">",
+      "unicode": "003E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C4",
+      "str": "≥",
+      "unicode": "2265",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1C5",
+      "str": "៖",
+      "unicode": "17D6",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C6",
+      "str": ":",
+      "unicode": "003A",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C7",
+      "str": ";",
+      "unicode": "003B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1C8",
+      "str": "…",
+      "unicode": "2026",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1C9",
+      "str": "*Sp*​",
+      "unicode": "002A 0053 0070 002A 200B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout"
+      ]
+    },
+    {
+      "pua": "F1CA",
+      "str": "្",
+      "unicode": "17D2",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CB",
+      "str": "​",
+      "unicode": "200B",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CC",
+      "str": "‌",
+      "unicode": "200C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CD",
+      "str": "€",
+      "unicode": "20AC",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CE",
+      "str": "≈",
+      "unicode": "2248",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1CF",
+      "str": "‍",
+      "unicode": "200D",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D0",
+      "str": "៘",
+      "unicode": "17D8",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D1",
+      "str": ",",
+      "unicode": "002C",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D2",
+      "str": ".",
+      "unicode": "002E",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D3",
+      "str": "",
+      "unicode": "",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D4",
+      "str": "\"",
+      "unicode": "0022",
+      "usages": [
+        "khmer_angkor.keyman-touch-layout",
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D5",
+      "str": "៸",
+      "unicode": "17F8",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D6",
+      "str": "៰",
+      "unicode": "17F0",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D7",
+      "str": "៱",
+      "unicode": "17F1",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D8",
+      "str": "៲",
+      "unicode": "17F2",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1D9",
+      "str": "៳",
+      "unicode": "17F3",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1DA",
+      "str": "៴",
+      "unicode": "17F4",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1DB",
+      "str": "៵",
+      "unicode": "17F5",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1DC",
+      "str": "៶",
+      "unicode": "17F6",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1DD",
+      "str": "៷",
+      "unicode": "17F7",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1DE",
+      "str": "៹",
+      "unicode": "17F9",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1DF",
+      "str": "᧿",
+      "unicode": "19FF",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E0",
+      "str": "᧾",
+      "unicode": "19FE",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E1",
+      "str": "᧪",
+      "unicode": "19EA",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E2",
+      "str": "᧫",
+      "unicode": "19EB",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E3",
+      "str": "᧶",
+      "unicode": "19F6",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E4",
+      "str": "᧵",
+      "unicode": "19F5",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E5",
+      "str": "᧬",
+      "unicode": "19EC",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E6",
+      "str": "᧷",
+      "unicode": "19F7",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E7",
+      "str": "᧥",
+      "unicode": "19E5",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E8",
+      "str": "᧸",
+      "unicode": "19F8",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1E9",
+      "str": "᧡",
+      "unicode": "19E1",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1EA",
+      "str": "᧻",
+      "unicode": "19FB",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1EB",
+      "str": "᧹",
+      "unicode": "19F9",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1EC",
+      "str": "᧮",
+      "unicode": "19EE",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1ED",
+      "str": "᧢",
+      "unicode": "19E2",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1EE",
+      "str": "᧯",
+      "unicode": "19EF",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1EF",
+      "str": "᧰",
+      "unicode": "19F0",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F0",
+      "str": "᧦",
+      "unicode": "19E6",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F1",
+      "str": "᧱",
+      "unicode": "19F1",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F2",
+      "str": "᧤",
+      "unicode": "19E4",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F3",
+      "str": "᧭",
+      "unicode": "19ED",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F4",
+      "str": "᧣",
+      "unicode": "19E3",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F5",
+      "str": "᧧",
+      "unicode": "19E7",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F6",
+      "str": "᧠",
+      "unicode": "19E0",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F7",
+      "str": "᧺",
+      "unicode": "19FA",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F8",
+      "str": "᧲",
+      "unicode": "19F2",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1F9",
+      "str": "᧳",
+      "unicode": "19F3",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1FA",
+      "str": "᧴",
+      "unicode": "19F4",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1FB",
+      "str": "᧩",
+      "unicode": "19E9",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1FC",
+      "str": "᧨",
+      "unicode": "19E8",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1FD",
+      "str": "᧼",
+      "unicode": "19FC",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    },
+    {
+      "pua": "F1FE",
+      "str": "᧽",
+      "unicode": "19FD",
+      "usages": [
+        "khmer_angkor.kvks"
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/developer/src/kmc-analyze/test/fixtures/khmer/khmer_angkor.keyman-touch-layout b/developer/src/kmc-analyze/test/fixtures/khmer/khmer_angkor.keyman-touch-layout
new file mode 100644
index 00000000000..71af4c108f9
--- /dev/null
+++ b/developer/src/kmc-analyze/test/fixtures/khmer/khmer_angkor.keyman-touch-layout
@@ -0,0 +1,1938 @@
+{
+  "tablet": {
+    "displayUnderlying": false,
+    "layer": [
+      {
+        "id": "default",
+        "row": [
+          {
+            "id": 1,
+            "key": [
+              {
+                "id": "K_1",
+                "text": "១"
+              },
+              {
+                "id": "K_2",
+                "text": "២"
+              },
+              {
+                "id": "K_3",
+                "text": "៣"
+              },
+              {
+                "id": "K_4",
+                "text": "៤"
+              },
+              {
+                "id": "K_5",
+                "text": "៥"
+              },
+              {
+                "id": "K_6",
+                "text": "៦"
+              },
+              {
+                "id": "K_7",
+                "text": "៧"
+              },
+              {
+                "id": "K_8",
+                "text": "៨"
+              },
+              {
+                "id": "K_9",
+                "text": "៩"
+              },
+              {
+                "id": "K_0",
+                "text": "០"
+              },
+              {
+                "id": "K_HYPHEN",
+                "text": "ឥ"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "ឲ"
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 2,
+            "key": [
+              {
+                "id": "K_Q",
+                "text": "ឆ"
+              },
+              {
+                "id": "K_W",
+                "text": "ឹ"
+              },
+              {
+                "id": "K_E",
+                "text": "េ"
+              },
+              {
+                "id": "K_R",
+                "text": "រ"
+              },
+              {
+                "id": "K_T",
+                "text": "ត"
+              },
+              {
+                "id": "K_Y",
+                "text": "យ"
+              },
+              {
+                "id": "K_U",
+                "text": "ុ"
+              },
+              {
+                "id": "K_I",
+                "text": "ិ"
+              },
+              {
+                "id": "K_O",
+                "text": "ោ"
+              },
+              {
+                "id": "K_P",
+                "text": "ផ"
+              },
+              {
+                "id": "K_LBRKT",
+                "text": "ៀ"
+              },
+              {
+                "id": "K_RBRKT",
+                "text": "ឪ"
+              },
+              {
+                "id": "T_new_138",
+                "text": "",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 3,
+            "key": [
+              {
+                "id": "K_BKQUOTE",
+                "text": "«"
+              },
+              {
+                "id": "K_A",
+                "text": "ា"
+              },
+              {
+                "id": "K_S",
+                "text": "ស"
+              },
+              {
+                "id": "K_D",
+                "text": "ដ"
+              },
+              {
+                "id": "K_F",
+                "text": "ថ"
+              },
+              {
+                "id": "K_G",
+                "text": "ង"
+              },
+              {
+                "id": "K_H",
+                "text": "ហ"
+              },
+              {
+                "id": "K_J",
+                "text": "្"
+              },
+              {
+                "id": "K_K",
+                "text": "ក"
+              },
+              {
+                "id": "K_L",
+                "text": "ល"
+              },
+              {
+                "id": "K_COLON",
+                "text": "ើ"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "់"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "ឮ"
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
+              {
+                "id": "K_SHIFT",
+                "text": "*Shift*",
+                "width": 160,
+                "sp": 1,
+                "nextlayer": "shift"
+              },
+              {
+                "id": "K_oE2",
+                "text": ""
+              },
+              {
+                "id": "K_Z",
+                "text": "ឋ"
+              },
+              {
+                "id": "K_X",
+                "text": "ខ"
+              },
+              {
+                "id": "K_C",
+                "text": "ច"
+              },
+              {
+                "id": "K_V",
+                "text": "វ"
+              },
+              {
+                "id": "K_B",
+                "text": "ប"
+              },
+              {
+                "id": "K_N",
+                "text": "ន"
+              },
+              {
+                "id": "K_M",
+                "text": "ម"
+              },
+              {
+                "id": "K_COMMA",
+                "text": "ុំ"
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "។"
+              },
+              {
+                "id": "K_SLASH",
+                "text": "៊"
+              },
+              {
+                "id": "T_new_164",
+                "text": "",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 5,
+            "key": [
+              {
+                "id": "K_LCONTROL",
+                "text": "*AltGr*",
+                "width": 160,
+                "sp": 1,
+                "nextlayer": "rightalt"
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 160,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "​",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 160,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "id": "rightalt",
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+            "id": 1,
+            "key": [
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+                "id": "K_1",
+                "text": "‌"
+              },
+              {
+                "id": "K_2",
+                "text": "@"
+              },
+              {
+                "id": "K_3",
+                "text": "៑"
+              },
+              {
+                "id": "K_4",
+                "text": "$"
+              },
+              {
+                "id": "K_5",
+                "text": "€"
+              },
+              {
+                "id": "K_6",
+                "text": "៙"
+              },
+              {
+                "id": "K_7",
+                "text": "៚"
+              },
+              {
+                "id": "K_8",
+                "text": "*"
+              },
+              {
+                "id": "K_9",
+                "text": "{"
+              },
+              {
+                "id": "K_0",
+                "text": "}"
+              },
+              {
+                "id": "K_HYPHEN",
+                "text": "≈"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "៎"
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
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+            "id": 2,
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+                "id": "K_Q",
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+                "id": "K_W",
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+              {
+                "id": "K_E",
+                "text": "ឯ"
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+                "id": "K_R",
+                "text": "ឫ"
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+                "id": "K_T",
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+              {
+                "id": "K_Y",
+                "text": "["
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+              {
+                "id": "K_U",
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+              {
+                "id": "K_I",
+                "text": "ឦ"
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+              {
+                "id": "K_O",
+                "text": "ឱ"
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+              {
+                "id": "K_P",
+                "text": "ឰ"
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+              {
+                "id": "K_LBRKT",
+                "text": "ឩ"
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+                "id": "K_RBRKT",
+                "text": "ឳ"
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+                "id": "T_new_307",
+                "text": "",
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+                "sp": 10
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+                "id": "K_BKQUOTE",
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+                "id": "K_A",
+                "text": "+"
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+              {
+                "id": "K_S",
+                "text": "-"
+              },
+              {
+                "id": "K_D",
+                "text": "×"
+              },
+              {
+                "id": "K_F",
+                "text": "÷"
+              },
+              {
+                "id": "K_G",
+                "text": ":"
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+              {
+                "id": "K_H",
+                "text": "‘"
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+              {
+                "id": "K_J",
+                "text": "’"
+              },
+              {
+                "id": "K_K",
+                "text": "ឝ"
+              },
+              {
+                "id": "K_L",
+                "text": "៘"
+              },
+              {
+                "id": "K_COLON",
+                "text": "៖"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "ៈ"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "\\"
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+            ]
+          },
+          {
+            "id": 4,
+            "key": [
+              {
+                "id": "K_SHIFT",
+                "text": "*Shift*",
+                "width": 160,
+                "sp": 1,
+                "nextlayer": "shift"
+              },
+              {
+                "id": "K_oE2",
+                "text": ""
+              },
+              {
+                "id": "K_Z",
+                "text": "<"
+              },
+              {
+                "id": "K_X",
+                "text": ">"
+              },
+              {
+                "id": "K_C",
+                "text": "#"
+              },
+              {
+                "id": "K_V",
+                "text": "&"
+              },
+              {
+                "id": "K_B",
+                "text": "ឞ"
+              },
+              {
+                "id": "K_N",
+                "text": ";"
+              },
+              {
+                "id": "K_M",
+                "text": "៓"
+              },
+              {
+                "id": "K_COMMA",
+                "text": ","
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "."
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+              {
+                "id": "K_SLASH",
+                "text": "/"
+              },
+              {
+                "id": "T_new_333",
+                "text": "",
+                "width": 10,
+                "sp": 10
+              }
+            ]
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+          {
+            "id": 5,
+            "key": [
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+                "id": "K_LCONTROL",
+                "text": "*AltGr*",
+                "width": 160,
+                "sp": 2,
+                "nextlayer": "default"
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 160,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": " ",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 160,
+                "sp": 1
+              }
+            ]
+          }
+        ]
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+      {
+        "id": "shift",
+        "row": [
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+            "id": 1,
+            "key": [
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+                "id": "K_1",
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+                "id": "K_2",
+                "text": "ៗ"
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+              {
+                "id": "K_3",
+                "text": "\""
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+              {
+                "id": "K_4",
+                "text": "៛"
+              },
+              {
+                "id": "K_5",
+                "text": "%"
+              },
+              {
+                "id": "K_6",
+                "text": "៍"
+              },
+              {
+                "id": "K_7",
+                "text": "័"
+              },
+              {
+                "id": "K_8",
+                "text": "៏"
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+              {
+                "id": "K_9",
+                "text": "("
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+              {
+                "id": "K_0",
+                "text": ")"
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+              {
+                "id": "K_HYPHEN",
+                "text": "៌"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "="
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+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
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+            "id": 2,
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+                "id": "K_Q",
+                "text": "ឈ"
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+                "id": "K_W",
+                "text": "ឺ"
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+                "id": "K_E",
+                "text": "ែ"
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+              {
+                "id": "K_R",
+                "text": "ឬ"
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+              {
+                "id": "K_T",
+                "text": "ទ"
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+              {
+                "id": "K_Y",
+                "text": "ួ"
+              },
+              {
+                "id": "K_U",
+                "text": "ូ"
+              },
+              {
+                "id": "K_I",
+                "text": "ី"
+              },
+              {
+                "id": "K_O",
+                "text": "ៅ"
+              },
+              {
+                "id": "K_P",
+                "text": "ភ"
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+              {
+                "id": "K_LBRKT",
+                "text": "ឿ"
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+              {
+                "id": "K_RBRKT",
+                "text": "ឧ"
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+                "id": "T_new_364",
+                "text": "",
+                "width": 10,
+                "sp": 10
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+                "id": "K_BKQUOTE",
+                "text": "»"
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+              {
+                "id": "K_A",
+                "text": "ាំ"
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+              {
+                "id": "K_S",
+                "text": "ៃ"
+              },
+              {
+                "id": "K_D",
+                "text": "ឌ"
+              },
+              {
+                "id": "K_F",
+                "text": "ធ"
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+              {
+                "id": "K_G",
+                "text": "អ"
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+              {
+                "id": "K_H",
+                "text": "ះ"
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+              {
+                "id": "K_J",
+                "text": "ញ"
+              },
+              {
+                "id": "K_K",
+                "text": "គ"
+              },
+              {
+                "id": "K_L",
+                "text": "ឡ"
+              },
+              {
+                "id": "K_COLON",
+                "text": "ោះ"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "៉"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "ឭ"
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+          {
+            "id": 4,
+            "key": [
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+                "id": "K_SHIFT",
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+                "sp": 2,
+                "nextlayer": "default"
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+              {
+                "id": "K_oE2",
+                "text": ""
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+              {
+                "id": "K_Z",
+                "text": "ឍ"
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+              {
+                "id": "K_X",
+                "text": "ឃ"
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+              {
+                "id": "K_C",
+                "text": "ជ"
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+              {
+                "id": "K_V",
+                "text": "េះ"
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+              {
+                "id": "K_B",
+                "text": "ព"
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+                "id": "K_N",
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+                "id": "K_M",
+                "text": "ំ"
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+              {
+                "id": "K_COMMA",
+                "text": "ុះ"
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+              {
+                "id": "K_PERIOD",
+                "text": "៕"
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+              {
+                "id": "K_SLASH",
+                "text": "?"
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+              {
+                "id": "T_new_390",
+                "text": "",
+                "width": 10,
+                "sp": 10
+              }
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+                "id": "K_LCONTROL",
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+                "sp": 1,
+                "nextlayer": "rightalt"
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 160,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 160,
+                "sp": 1
+              }
+            ]
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+        ]
+      }
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+                    "id": "K_Q",
+                    "layer": "shift"
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+                  {
+                    "text": "្ឆ",
+                    "id": "T_17D2_1786"
+                  },
+                  {
+                    "text": "្ឈ",
+                    "id": "T_17D2_1788"
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+              {
+                "id": "K_W",
+                "text": "ឹ",
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+                    "text": "ឺ",
+                    "id": "K_W",
+                    "layer": "shift"
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+                ]
+              },
+              {
+                "id": "K_E",
+                "text": "េ",
+                "sk": [
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+                    "text": "ែ",
+                    "id": "K_E",
+                    "layer": "shift"
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+                  {
+                    "text": "ៃ",
+                    "id": "K_S",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "េះ",
+                    "id": "K_V",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "ឯ",
+                    "id": "U_17AF"
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+                  {
+                    "text": "ឰ",
+                    "id": "U_17B0"
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+                "id": "K_R",
+                "text": "រ",
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+                    "text": "្រ",
+                    "id": "T_17D2_179A"
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+                    "text": "ឫ",
+                    "id": "U_17AB"
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+                  {
+                    "text": "ឬ",
+                    "id": "U_17AC"
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+                ]
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+                "id": "K_T",
+                "text": "ត",
+                "sk": [
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+                    "text": "ទ",
+                    "id": "K_T",
+                    "layer": "shift"
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+                  {
+                    "text": "្ត",
+                    "id": "T_17D2_178F"
+                  },
+                  {
+                    "text": "្ទ",
+                    "id": "T_17D2_1791",
+                    "layer": "default"
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+                ]
+              },
+              {
+                "id": "K_Y",
+                "text": "យ",
+                "sk": [
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+                    "text": "្យ",
+                    "id": "T_17D2_1799"
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+                "id": "K_U",
+                "text": "ុ",
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+                    "text": "ូ",
+                    "id": "K_U",
+                    "layer": "shift"
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+                  {
+                    "text": "ួ",
+                    "id": "K_Y",
+                    "layer": "shift"
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+                    "text": "ឧ",
+                    "id": "U_17A7"
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+                    "text": "ឪ",
+                    "id": "U_17AA",
+                    "layer": "shift"
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+                    "text": "ឩ",
+                    "id": "U_17A9",
+                    "layer": "shift"
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+                    "text": "ឨ",
+                    "id": "U_17A8"
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+                "id": "K_I",
+                "text": "ិ",
+                "sk": [
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+                    "text": "ី",
+                    "id": "K_I",
+                    "layer": "shift"
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+                    "text": "ឥ",
+                    "id": "U_17A5"
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+                    "text": "ឦ",
+                    "id": "U_17A6",
+                    "layer": "shift"
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+                ]
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+                "id": "K_O",
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+                    "layer": "shift"
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+                    "id": "K_LBRKT"
+                  },
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+                    "text": "ឿ",
+                    "id": "K_LBRKT",
+                    "layer": "shift"
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+                    "text": "ោះ",
+                    "id": "K_COLON",
+                    "layer": "shift"
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+                  {
+                    "text": "ឱ",
+                    "id": "U_17B1"
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+                    "id": "U_17B3",
+                    "layer": "shift"
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+                ]
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+                "id": "K_P",
+                "text": "ផ",
+                "sk": [
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+                    "text": "ភ",
+                    "id": "K_P",
+                    "layer": "shift"
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+                  {
+                    "text": "្ផ",
+                    "id": "T_17D2_1795"
+                  },
+                  {
+                    "text": "្ភ",
+                    "id": "T_17D2_1797",
+                    "layer": "default"
+                  }
+                ]
+              }
+            ]
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+                "id": "K_A",
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+                    "text": "ាំ",
+                    "id": "K_A",
+                    "layer": "shift"
+                  }
+                ]
+              },
+              {
+                "id": "K_S",
+                "text": "ស",
+                "sk": [
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+                    "text": "្ស",
+                    "id": "T_17D2_179F"
+                  },
+                  {
+                    "text": "ឝ",
+                    "id": "U_179D"
+                  },
+                  {
+                    "text": "ឞ",
+                    "id": "U_179E"
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+                ]
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+                "id": "K_D",
+                "text": "ដ",
+                "sk": [
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+                    "text": "ឌ",
+                    "id": "K_D",
+                    "layer": "shift"
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+                  {
+                    "text": "្ដ",
+                    "id": "T_17D2_178A"
+                  },
+                  {
+                    "text": "្ឌ",
+                    "id": "T_17D2_178C",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_F",
+                "text": "ថ",
+                "sk": [
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+                    "text": "ធ",
+                    "id": "K_F",
+                    "layer": "shift"
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+                  {
+                    "text": "្ថ",
+                    "id": "T_17D2_1790"
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+                  {
+                    "text": "្ធ",
+                    "id": "T_17D2_1792",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_G",
+                "text": "ង",
+                "sk": [
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+                    "text": "អ",
+                    "id": "K_G",
+                    "layer": "shift"
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+                  {
+                    "text": "្ង",
+                    "id": "T_17D2_1784"
+                  },
+                  {
+                    "text": "្អ",
+                    "id": "T_17D2_17A2",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_H",
+                "text": "ហ",
+                "sk": [
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+                    "text": "្ហ",
+                    "id": "T_17D2_17A0"
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+                  {
+                    "text": "ះ",
+                    "id": "K_H",
+                    "layer": "shift"
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+                  {
+                    "text": "ៈ",
+                    "id": "U_17C8"
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+                ]
+              },
+              {
+                "id": "K_J",
+                "text": "ញ",
+                "layer": "shift",
+                "sk": [
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+                    "text": "្ញ",
+                    "id": "T_17D2_1789"
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+                ]
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+              {
+                "id": "K_K",
+                "text": "ក",
+                "sk": [
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+                    "text": "គ",
+                    "id": "K_K",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ក",
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+                  {
+                    "text": "្គ",
+                    "id": "T_17D2_1782"
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+                ]
+              },
+              {
+                "id": "K_L",
+                "text": "ល",
+                "sk": [
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+                    "text": "ឡ",
+                    "id": "K_L",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ល",
+                    "id": "T_17D2_179B"
+                  },
+                  {
+                    "text": "ឭ",
+                    "id": "U_17AD"
+                  },
+                  {
+                    "text": "ឮ",
+                    "id": "U_17AE"
+                  }
+                ]
+              },
+              {
+                "id": "K_COLON",
+                "text": "ើ"
+              }
+            ]
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+          {
+            "id": 3,
+            "key": [
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+                "id": "K_Z",
+                "text": "ឋ",
+                "sk": [
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+                    "text": "ឍ",
+                    "id": "K_Z",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ឋ",
+                    "id": "T_17D2_178B"
+                  },
+                  {
+                    "text": "្ឍ",
+                    "id": "T_17D2_178D",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_X",
+                "text": "ខ",
+                "sk": [
+                  {
+                    "text": "ឃ",
+                    "id": "K_X",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ខ",
+                    "id": "T_17D2_1781"
+                  },
+                  {
+                    "text": "្ឃ",
+                    "id": "T_17D2_1783",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_C",
+                "text": "ច",
+                "sk": [
+                  {
+                    "text": "ជ",
+                    "id": "K_C",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ច",
+                    "id": "T_17D2_1785"
+                  },
+                  {
+                    "text": "្ជ",
+                    "id": "T_17D2_1787",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_V",
+                "text": "វ",
+                "sk": [
+                  {
+                    "text": "្វ",
+                    "id": "T_17D2_179C"
+                  }
+                ]
+              },
+              {
+                "id": "K_B",
+                "text": "ប",
+                "sk": [
+                  {
+                    "text": "ព",
+                    "id": "K_B",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ប",
+                    "id": "T_17D2_1794"
+                  },
+                  {
+                    "text": "្ព",
+                    "id": "T_17D2_1796",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_N",
+                "text": "ន",
+                "sk": [
+                  {
+                    "text": "ណ",
+                    "id": "K_N",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "្ន",
+                    "id": "T_17D2_1793"
+                  },
+                  {
+                    "text": "្ណ",
+                    "id": "T_17D2_178E",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_M",
+                "text": "ម",
+                "sk": [
+                  {
+                    "text": "្ម",
+                    "id": "T_17D2_1798"
+                  },
+                  {
+                    "id": "K_M",
+                    "text": "ំ",
+                    "layer": "shift"
+                  }
+                ]
+              },
+              {
+                "id": "K_COMMA",
+                "text": "ុំ",
+                "sk": [
+                  {
+                    "id": "K_COMMA",
+                    "text": "ុះ",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "K_6",
+                    "text": "៍",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "K_7",
+                    "text": "័",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "K_8",
+                    "text": "៏",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "K_HYPHEN",
+                    "text": "៌",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "U_17D1",
+                    "text": "៑",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "U_17DD",
+                    "text": "៝",
+                    "layer": "shift"
+                  },
+                  {
+                    "id": "U_17CE",
+                    "text": "៎",
+                    "layer": "shift"
+                  }
+                ]
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "់",
+                "width": 100,
+                "sk": [
+                  {
+                    "text": "៉",
+                    "id": "K_QUOTE",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "៊",
+                    "id": "K_SLASH"
+                  }
+                ]
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
+              {
+                "id": "K_NUMLOCK",
+                "text": "១២៣",
+                "width": 140,
+                "sp": 1,
+                "nextlayer": "numeric"
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 120,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "*ZWSp*​",
+                "width": 555,
+                "sp": 0,
+                "sk": [
+                  {
+                    "text": "*Sp*",
+                    "id": "U_0020",
+                    "layer": "default"
+                  }
+                ]
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "។",
+                "width": 120,
+                "sk": [
+                  {
+                    "text": "៕",
+                    "id": "K_PERIOD",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "!",
+                    "id": "U_0021"
+                  },
+                  {
+                    "text": "?",
+                    "id": "U_003F"
+                  }
+                ]
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 140,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "id": "numeric",
+        "row": [
+          {
+            "id": 1,
+            "key": [
+              {
+                "id": "K_1",
+                "text": "១",
+                "sk": [
+                  {
+                    "text": "1",
+                    "id": "U_0031"
+                  }
+                ]
+              },
+              {
+                "id": "K_2",
+                "text": "២",
+                "sk": [
+                  {
+                    "text": "2",
+                    "id": "U_0032"
+                  }
+                ]
+              },
+              {
+                "id": "K_3",
+                "text": "៣",
+                "sk": [
+                  {
+                    "text": "3",
+                    "id": "U_0033"
+                  }
+                ]
+              },
+              {
+                "id": "K_4",
+                "text": "៤",
+                "sk": [
+                  {
+                    "text": "4",
+                    "id": "U_0034"
+                  }
+                ]
+              },
+              {
+                "id": "K_5",
+                "text": "៥",
+                "sk": [
+                  {
+                    "text": "5",
+                    "id": "U_0035"
+                  }
+                ]
+              },
+              {
+                "id": "K_6",
+                "text": "៦",
+                "sk": [
+                  {
+                    "text": "6",
+                    "id": "U_0036"
+                  }
+                ]
+              },
+              {
+                "id": "K_7",
+                "text": "៧",
+                "sk": [
+                  {
+                    "text": "7",
+                    "id": "U_0037"
+                  }
+                ]
+              },
+              {
+                "id": "K_8",
+                "text": "៨",
+                "sk": [
+                  {
+                    "text": "8",
+                    "id": "U_0038"
+                  }
+                ]
+              },
+              {
+                "id": "K_9",
+                "text": "៩",
+                "sk": [
+                  {
+                    "text": "9",
+                    "id": "U_0039"
+                  }
+                ]
+              },
+              {
+                "id": "K_0",
+                "text": "០",
+                "sk": [
+                  {
+                    "text": "0",
+                    "id": "U_0030"
+                  },
+                  {
+                    "text": "៓",
+                    "id": "U_17D3"
+                  }
+                ]
+              }
+            ]
+          },
+          {
+            "id": 2,
+            "key": [
+              {
+                "id": "U_0040",
+                "text": "@",
+                "sk": [
+                  {
+                    "text": "©",
+                    "id": "U_00A9"
+                  },
+                  {
+                    "text": "®",
+                    "id": "U_00AE"
+                  }
+                ]
+              },
+              {
+                "id": "U_0023",
+                "text": "#",
+                "sk": [
+                  {
+                    "text": "№",
+                    "id": "U_2116"
+                  },
+                  {
+                    "text": "~",
+                    "id": "U_007E"
+                  }
+                ]
+              },
+              {
+                "id": "U_17DB",
+                "text": "៛",
+                "sk": [
+                  {
+                    "text": "$",
+                    "id": "U_0024"
+                  },
+                  {
+                    "text": "฿",
+                    "id": "U_0E3F"
+                  },
+                  {
+                    "text": "¢",
+                    "id": "U_00A2"
+                  },
+                  {
+                    "text": "£",
+                    "id": "U_00A3"
+                  },
+                  {
+                    "text": "¥",
+                    "id": "U_00A5"
+                  }
+                ]
+              },
+              {
+                "id": "U_0026",
+                "text": "&"
+              },
+              {
+                "id": "U_0025",
+                "text": "%",
+                "sk": [
+                  {
+                    "text": "‰",
+                    "id": "U_2030"
+                  },
+                  {
+                    "text": "‱",
+                    "id": "U_2031"
+                  }
+                ]
+              },
+              {
+                "id": "U_002B",
+                "text": "+",
+                "sk": [
+                  {
+                    "text": "-",
+                    "id": "U_002D"
+                  },
+                  {
+                    "text": "×",
+                    "id": "U_00D7"
+                  },
+                  {
+                    "text": "÷",
+                    "id": "U_00F7"
+                  },
+                  {
+                    "text": "±",
+                    "id": "U_00B1"
+                  }
+                ]
+              },
+              {
+                "id": "U_003D",
+                "text": "=",
+                "sk": [
+                  {
+                    "text": "_",
+                    "id": "U_005F"
+                  },
+                  {
+                    "text": "≠",
+                    "id": "U_2260"
+                  }
+                ]
+              },
+              {
+                "id": "U_002A",
+                "text": "*",
+                "sk": [
+                  {
+                    "text": "^",
+                    "id": "U_005E"
+                  }
+                ]
+              },
+              {
+                "id": "U_003F",
+                "text": "?",
+                "sk": [
+                  {
+                    "text": "¿",
+                    "id": "U_00BF"
+                  }
+                ]
+              },
+              {
+                "id": "U_0021",
+                "text": "!",
+                "sk": [
+                  {
+                    "text": "¡",
+                    "id": "U_00A1"
+                  }
+                ]
+              }
+            ]
+          },
+          {
+            "id": 3,
+            "key": [
+              {
+                "id": "U_2018",
+                "text": "‘",
+                "sk": [
+                  {
+                    "text": "’",
+                    "id": "U_2019"
+                  }
+                ]
+              },
+              {
+                "id": "U_201C",
+                "text": "“",
+                "sk": [
+                  {
+                    "text": "”",
+                    "id": "U_201D"
+                  }
+                ]
+              },
+              {
+                "id": "U_00AB",
+                "text": "«",
+                "sk": [
+                  {
+                    "text": "»",
+                    "id": "U_00BB"
+                  }
+                ]
+              },
+              {
+                "id": "U_002F",
+                "text": "/",
+                "sk": [
+                  {
+                    "text": "\\",
+                    "id": "U_005C"
+                  },
+                  {
+                    "text": "|",
+                    "id": "U_007C"
+                  },
+                  {
+                    "text": "¦",
+                    "id": "U_00A6"
+                  }
+                ]
+              },
+              {
+                "id": "U_0028",
+                "text": "(",
+                "sk": [
+                  {
+                    "text": ")",
+                    "id": "U_0029"
+                  },
+                  {
+                    "text": "[",
+                    "id": "U_005B"
+                  },
+                  {
+                    "text": "]",
+                    "id": "U_005D"
+                  },
+                  {
+                    "text": "{",
+                    "id": "U_007B"
+                  },
+                  {
+                    "text": "}",
+                    "id": "U_007D"
+                  }
+                ]
+              },
+              {
+                "id": "U_17D9",
+                "text": "៙",
+                "sk": [
+                  {
+                    "text": "៚",
+                    "id": "U_17DA"
+                  },
+                  {
+                    "text": "ៜ",
+                    "id": "U_17DC"
+                  },
+                  {
+                    "text": "§",
+                    "id": "U_00A7"
+                  },
+                  {
+                    "text": "Ø",
+                    "id": "U_00D8"
+                  }
+                ]
+              },
+              {
+                "id": "U_17D7",
+                "text": "ៗ"
+              },
+              {
+                "id": "U_003C",
+                "text": "<",
+                "sk": [
+                  {
+                    "text": "≤",
+                    "id": "U_2264"
+                  },
+                  {
+                    "text": ">",
+                    "id": "U_003E"
+                  },
+                  {
+                    "text": "≥",
+                    "id": "U_2265"
+                  }
+                ]
+              },
+              {
+                "id": "U_17D6",
+                "text": "៖",
+                "sk": [
+                  {
+                    "text": ":",
+                    "id": "U_003A"
+                  },
+                  {
+                    "text": ";",
+                    "id": "U_003B"
+                  },
+                  {
+                    "text": "…",
+                    "id": "U_2026"
+                  }
+                ]
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
+              {
+                "id": "K_LCONTROL",
+                "text": "១២៣",
+                "width": 140,
+                "sp": 2,
+                "nextlayer": "default"
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 120,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "*Sp*​",
+                "width": 555,
+                "sp": 0,
+                "layer": "shift"
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "។",
+                "width": 120,
+                "sk": [
+                  {
+                    "text": "៕",
+                    "id": "K_PERIOD",
+                    "layer": "shift"
+                  },
+                  {
+                    "text": "!",
+                    "id": "U_0021"
+                  },
+                  {
+                    "text": "?",
+                    "id": "U_003F"
+                  }
+                ]
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 140,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      }
+    ],
+    "displayUnderlying": false,
+    "font": "Khmer Mondulkiri",
+    "fontsize": ""
+  }
+}
\ No newline at end of file
diff --git a/developer/src/kmc-analyze/test/fixtures/khmer/khmer_angkor.kvks b/developer/src/kmc-analyze/test/fixtures/khmer/khmer_angkor.kvks
new file mode 100644
index 00000000000..f0f9bc775d2
--- /dev/null
+++ b/developer/src/kmc-analyze/test/fixtures/khmer/khmer_angkor.kvks
@@ -0,0 +1,206 @@
+<?xml version="1.0" encoding="utf-8"?>
+<visualkeyboard>
+  <header>
+    <version>10.0</version>
+    <kbdname>khmer_angkor</kbdname>
+    <flags>
+      <usealtgr/>
+    </flags>
+  </header>
+  <encoding name="unicode" fontname="KbdKhmr" fontsize="12">
+    <layer shift="RA">
+      <key vkey="K_B">ឞ</key>
+      <key vkey="K_K">ឝ</key>
+      <key vkey="K_QUOTE">ៈ</key>
+      <key vkey="K_RBRKT">ឳ</key>
+      <key vkey="K_T">ឨ</key>
+      <key vkey="K_LBRKT">ឩ</key>
+      <key vkey="K_P">ឰ</key>
+      <key vkey="K_R">ឫ</key>
+      <key vkey="K_I">ឦ</key>
+      <key vkey="K_O">ឱ</key>
+      <key vkey="K_E">ឯ</key>
+      <key vkey="K_3">៑</key>
+      <key vkey="K_W">៝</key>
+      <key vkey="K_Q">ៜ</key>
+      <key vkey="K_EQUAL">៎</key>
+      <key vkey="K_COLON">៖</key>
+      <key vkey="K_6">៙</key>
+      <key vkey="K_7">៚</key>
+      <key vkey="K_M">៓</key>
+      <key vkey="K_L">៘</key>
+      <key vkey="K_1">‌</key>
+      <key vkey="K_BKQUOTE">‍</key>
+      <key vkey="K_U">]</key>
+      <key vkey="K_Y">[</key>
+      <key vkey="K_SLASH">/</key>
+      <key vkey="K_PERIOD">.</key>
+      <key vkey="K_H">‘</key>
+      <key vkey="K_A">+</key>
+      <key vkey="K_V">&amp;</key>
+      <key vkey="K_J">’</key>
+      <key vkey="K_8">*</key>
+      <key vkey="K_2">@</key>
+      <key vkey="K_BKSLASH">\</key>
+      <key vkey="K_0">}</key>
+      <key vkey="K_9">{</key>
+      <key vkey="K_S">-</key>
+      <key vkey="K_F">÷</key>
+      <key vkey="K_G">:</key>
+      <key vkey="K_COMMA">,</key>
+      <key vkey="K_HYPHEN">≈</key>
+      <key vkey="K_N">;</key>
+      <key vkey="K_Z">&lt;</key>
+      <key vkey="K_C">#</key>
+      <key vkey="K_X">&gt;</key>
+      <key vkey="K_D">×</key>
+      <key vkey="K_4">$</key>
+      <key vkey="K_5">€</key>
+      <key vkey="K_SPACE"> </key>
+    </layer>
+    <layer shift="SRA">
+      <key vkey="K_8">៸</key>
+      <key vkey="K_0">៰</key>
+      <key vkey="K_1">៱</key>
+      <key vkey="K_2">៲</key>
+      <key vkey="K_3">៳</key>
+      <key vkey="K_4">៴</key>
+      <key vkey="K_5">៵</key>
+      <key vkey="K_6">៶</key>
+      <key vkey="K_7">៷</key>
+      <key vkey="K_9">៹</key>
+      <key vkey="K_PERIOD">᧿</key>
+      <key vkey="K_COMMA">᧾</key>
+      <key vkey="K_LBRKT">᧪</key>
+      <key vkey="K_RBRKT">᧫</key>
+      <key vkey="K_QUOTE">᧶</key>
+      <key vkey="K_COLON">᧵</key>
+      <key vkey="K_A">᧬</key>
+      <key vkey="K_Z">᧷</key>
+      <key vkey="K_Y">᧥</key>
+      <key vkey="K_X">᧸</key>
+      <key vkey="K_W">᧡</key>
+      <key vkey="K_B">᧻</key>
+      <key vkey="K_C">᧹</key>
+      <key vkey="K_D">᧮</key>
+      <key vkey="K_E">᧢</key>
+      <key vkey="K_F">᧯</key>
+      <key vkey="K_G">᧰</key>
+      <key vkey="K_U">᧦</key>
+      <key vkey="K_H">᧱</key>
+      <key vkey="K_T">᧤</key>
+      <key vkey="K_S">᧭</key>
+      <key vkey="K_R">᧣</key>
+      <key vkey="K_I">᧧</key>
+      <key vkey="K_Q">᧠</key>
+      <key vkey="K_V">᧺</key>
+      <key vkey="K_J">᧲</key>
+      <key vkey="K_K">᧳</key>
+      <key vkey="K_L">᧴</key>
+      <key vkey="K_P">᧩</key>
+      <key vkey="K_O">᧨</key>
+      <key vkey="K_N">᧼</key>
+      <key vkey="K_M">᧽</key>
+    </layer>
+    <layer shift="">
+      <key vkey="K_SPACE">​</key>
+      <key vkey="K_QUOTE">់</key>
+      <key vkey="K_COMMA">ុំ</key>
+      <key vkey="K_HYPHEN">ឥ</key>
+      <key vkey="K_PERIOD">។</key>
+      <key vkey="K_SLASH">៊</key>
+      <key vkey="K_0">០</key>
+      <key vkey="K_1">១</key>
+      <key vkey="K_2">២</key>
+      <key vkey="K_3">៣</key>
+      <key vkey="K_4">៤</key>
+      <key vkey="K_5">៥</key>
+      <key vkey="K_6">៦</key>
+      <key vkey="K_7">៧</key>
+      <key vkey="K_8">៨</key>
+      <key vkey="K_9">៩</key>
+      <key vkey="K_COLON">ើ</key>
+      <key vkey="K_EQUAL">ឲ</key>
+      <key vkey="K_LBRKT">ៀ</key>
+      <key vkey="K_BKSLASH">ឮ</key>
+      <key vkey="K_RBRKT">ឪ</key>
+      <key vkey="K_BKQUOTE">«</key>
+      <key vkey="K_A">ា</key>
+      <key vkey="K_B">ប</key>
+      <key vkey="K_C">ច</key>
+      <key vkey="K_D">ដ</key>
+      <key vkey="K_E">េ</key>
+      <key vkey="K_F">ថ</key>
+      <key vkey="K_G">ង</key>
+      <key vkey="K_H">ហ</key>
+      <key vkey="K_I">ិ</key>
+      <key vkey="K_J">្</key>
+      <key vkey="K_K">ក</key>
+      <key vkey="K_L">ល</key>
+      <key vkey="K_M">ម</key>
+      <key vkey="K_N">ន</key>
+      <key vkey="K_O">ោ</key>
+      <key vkey="K_P">ផ</key>
+      <key vkey="K_Q">ឆ</key>
+      <key vkey="K_R">រ</key>
+      <key vkey="K_S">ស</key>
+      <key vkey="K_T">ត</key>
+      <key vkey="K_U">ុ</key>
+      <key vkey="K_V">វ</key>
+      <key vkey="K_W">ឹ</key>
+      <key vkey="K_X">ខ</key>
+      <key vkey="K_Y">យ</key>
+      <key vkey="K_Z">ឋ</key>
+    </layer>
+    <layer shift="S">
+      <key vkey="K_SPACE"></key>
+      <key vkey="K_1">!</key>
+      <key vkey="K_QUOTE">៉</key>
+      <key vkey="K_3">"</key>
+      <key vkey="K_4">៛</key>
+      <key vkey="K_5">%</key>
+      <key vkey="K_7">័</key>
+      <key vkey="K_9">(</key>
+      <key vkey="K_0">)</key>
+      <key vkey="K_8">៏</key>
+      <key vkey="K_EQUAL">=</key>
+      <key vkey="K_COLON">ោះ</key>
+      <key vkey="K_COMMA">ុះ</key>
+      <key vkey="K_PERIOD">៕</key>
+      <key vkey="K_SLASH">?</key>
+      <key vkey="K_2">ៗ</key>
+      <key vkey="K_A">ាំ</key>
+      <key vkey="K_B">ព</key>
+      <key vkey="K_C">ជ</key>
+      <key vkey="K_D">ឌ</key>
+      <key vkey="K_E">ែ</key>
+      <key vkey="K_F">ធ</key>
+      <key vkey="K_G">អ</key>
+      <key vkey="K_H">ះ</key>
+      <key vkey="K_I">ី</key>
+      <key vkey="K_J">ញ</key>
+      <key vkey="K_K">គ</key>
+      <key vkey="K_L">ឡ</key>
+      <key vkey="K_M">ំ</key>
+      <key vkey="K_N">ណ</key>
+      <key vkey="K_O">ៅ</key>
+      <key vkey="K_P">ភ</key>
+      <key vkey="K_Q">ឈ</key>
+      <key vkey="K_R">ឬ</key>
+      <key vkey="K_S">ៃ</key>
+      <key vkey="K_T">ទ</key>
+      <key vkey="K_U">ូ</key>
+      <key vkey="K_V">េះ</key>
+      <key vkey="K_W">ឺ</key>
+      <key vkey="K_X">ឃ</key>
+      <key vkey="K_Y">ួ</key>
+      <key vkey="K_Z">ឍ</key>
+      <key vkey="K_6">៍</key>
+      <key vkey="K_HYPHEN">៌</key>
+      <key vkey="K_LBRKT">ឿ</key>
+      <key vkey="K_BKSLASH">ឭ</key>
+      <key vkey="K_RBRKT">ឧ</key>
+      <key vkey="K_BKQUOTE">»</key>
+    </layer>
+  </encoding>
+</visualkeyboard>
diff --git a/developer/src/kmc-analyze/test/fixtures/khmer/sil_khmer.keyman-touch-layout b/developer/src/kmc-analyze/test/fixtures/khmer/sil_khmer.keyman-touch-layout
new file mode 100644
index 00000000000..a28b323fc38
--- /dev/null
+++ b/developer/src/kmc-analyze/test/fixtures/khmer/sil_khmer.keyman-touch-layout
@@ -0,0 +1,1125 @@
+{
+  "tablet": {
+    "displayUnderlying": false,
+    "layer": [
+      {
+        "id": "default",
+        "row": [
+          {
+            "id": 1,
+            "key": [
+              {
+                "id": "K_1",
+                "text": "១"
+              },
+              {
+                "id": "K_2",
+                "text": "២"
+              },
+              {
+                "id": "K_3",
+                "text": "៣"
+              },
+              {
+                "id": "K_4",
+                "text": "៤"
+              },
+              {
+                "id": "K_5",
+                "text": "៥"
+              },
+              {
+                "id": "K_6",
+                "text": "៦"
+              },
+              {
+                "id": "K_7",
+                "text": "៧"
+              },
+              {
+                "id": "K_8",
+                "text": "៨"
+              },
+              {
+                "id": "K_9",
+                "text": "៩"
+              },
+              {
+                "id": "K_0",
+                "text": "០"
+              },
+              {
+                "id": "K_HYPHEN",
+                "text": "-"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "="
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 2,
+            "key": [
+              {
+                "id": "K_Q",
+                "text": "ឆ",
+                "pad": 75
+              },
+              {
+                "id": "K_W",
+                "text": "ឹ"
+              },
+              {
+                "id": "K_E",
+                "text": "េ"
+              },
+              {
+                "id": "K_R",
+                "text": "រ"
+              },
+              {
+                "id": "K_T",
+                "text": "ត"
+              },
+              {
+                "id": "K_Y",
+                "text": "យ"
+              },
+              {
+                "id": "K_U",
+                "text": "ុ"
+              },
+              {
+                "id": "K_I",
+                "text": "ិ"
+              },
+              {
+                "id": "K_O",
+                "text": "ៀ"
+              },
+              {
+                "id": "K_P",
+                "text": "ផ"
+              },
+              {
+                "id": "K_LBRKT",
+                "text": "ឲ្យ"
+              },
+              {
+                "id": "K_RBRKT",
+                "text": "ខ្ញុំ"
+              },
+              {
+                "id": "T_new_138",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 3,
+            "key": [
+              {
+                "id": "K_A",
+                "text": "ា"
+              },
+              {
+                "id": "K_S",
+                "text": "ស"
+              },
+              {
+                "id": "K_D",
+                "text": "ដ"
+              },
+              {
+                "id": "K_F",
+                "text": "ថ"
+              },
+              {
+                "id": "K_G",
+                "text": "ង"
+              },
+              {
+                "id": "K_H",
+                "text": "ហ"
+              },
+              {
+                "id": "K_J",
+                "text": "ញ"
+              },
+              {
+                "id": "K_K",
+                "text": "ក"
+              },
+              {
+                "id": "K_L",
+                "text": "ល"
+              },
+              {
+                "id": "K_COLON",
+                "text": "្"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "៊"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "ឮ"
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
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+                "id": "K_SHIFT",
+                "text": "*Shift*",
+                "width": 160,
+                "sp": 1,
+                "nextlayer": "shift"
+              },
+              {
+                "id": "K_Z",
+                "text": "ឋ"
+              },
+              {
+                "id": "K_X",
+                "text": "ខ"
+              },
+              {
+                "id": "K_C",
+                "text": "ច"
+              },
+              {
+                "id": "K_V",
+                "text": "វ"
+              },
+              {
+                "id": "K_B",
+                "text": "ប"
+              },
+              {
+                "id": "K_N",
+                "text": "ន"
+              },
+              {
+                "id": "K_M",
+                "text": "ម"
+              },
+              {
+                "id": "K_COMMA",
+                "text": ","
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "space",
+                "sk": [
+                  {
+                    "text": "hair",
+                    "id": "U_200A"
+                  },
+                  {
+                    "text": "ZWNJ",
+                    "id": "U_200C"
+                  },
+                  {
+                    "text": "thin",
+                    "id": "U_2009"
+                  },
+                  {
+                    "text": "4em",
+                    "id": "U_2005"
+                  },
+                  {
+                    "text": "en",
+                    "id": "U_2002"
+                  }
+                ]
+              },
+              {
+                "id": "K_SLASH",
+                "text": "\\"
+              },
+              {
+                "id": "K_BKQUOTE",
+                "text": "់"
+              },
+              {
+                "id": "T_new_164",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 5,
+            "key": [
+              {
+                "id": "K_LCONTROL",
+                "text": "*Alt*",
+                "width": 130,
+                "sp": 1,
+                "nextlayer": "ctrl-alt",
+                "sk": [
+                  {
+                    "text": "*AltShift*",
+                    "id": "K_LCONTROL",
+                    "sp": 1,
+                    "nextlayer": "shift-ctrl-alt"
+                  }
+                ]
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 140,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "Zero width space",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 145,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "id": "shift",
+        "row": [
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+            "id": 1,
+            "key": [
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+                "id": "K_1",
+                "text": "!"
+              },
+              {
+                "id": "K_2",
+                "text": "ៗ"
+              },
+              {
+                "id": "K_3",
+                "text": "#"
+              },
+              {
+                "id": "K_4",
+                "text": "៛"
+              },
+              {
+                "id": "K_5",
+                "text": "%"
+              },
+              {
+                "id": "K_6",
+                "text": ";"
+              },
+              {
+                "id": "K_7",
+                "text": "័"
+              },
+              {
+                "id": "K_8",
+                "text": "*"
+              },
+              {
+                "id": "K_9",
+                "text": "("
+              },
+              {
+                "id": "K_0",
+                "text": ")"
+              },
+              {
+                "id": "K_HYPHEN",
+                "text": "៍"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "៎"
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 2,
+            "key": [
+              {
+                "id": "K_Q",
+                "text": "ឈ",
+                "pad": 75
+              },
+              {
+                "id": "K_W",
+                "text": "ឺ"
+              },
+              {
+                "id": "K_E",
+                "text": "ែ"
+              },
+              {
+                "id": "K_R",
+                "text": "ើ"
+              },
+              {
+                "id": "K_T",
+                "text": "ទ"
+              },
+              {
+                "id": "K_Y",
+                "text": "ួ"
+              },
+              {
+                "id": "K_U",
+                "text": "ូ"
+              },
+              {
+                "id": "K_I",
+                "text": "ី"
+              },
+              {
+                "id": "K_O",
+                "text": "ឿ"
+              },
+              {
+                "id": "K_P",
+                "text": "ភ"
+              },
+              {
+                "id": "K_LBRKT",
+                "text": "ឪ"
+              },
+              {
+                "id": "K_RBRKT",
+                "text": "ឥ"
+              },
+              {
+                "id": "T_new_309",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 3,
+            "key": [
+              {
+                "id": "K_A",
+                "text": "ៅ"
+              },
+              {
+                "id": "K_S",
+                "text": "ឝ"
+              },
+              {
+                "id": "K_D",
+                "text": "ឌ"
+              },
+              {
+                "id": "K_F",
+                "text": "ធ"
+              },
+              {
+                "id": "K_G",
+                "text": "អ"
+              },
+              {
+                "id": "K_H",
+                "text": "៖"
+              },
+              {
+                "id": "K_J",
+                "text": "ៜ"
+              },
+              {
+                "id": "K_K",
+                "text": "គ"
+              },
+              {
+                "id": "K_L",
+                "text": "ឡ"
+              },
+              {
+                "id": "K_COLON",
+                "text": "ះ"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "៉"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "ឬ"
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
+              {
+                "id": "K_SHIFT",
+                "text": "*Shift*",
+                "width": 160,
+                "sp": 2,
+                "nextlayer": "default"
+              },
+              {
+                "id": "K_Z",
+                "text": "ឍ"
+              },
+              {
+                "id": "K_X",
+                "text": "ឃ"
+              },
+              {
+                "id": "K_C",
+                "text": "ជ"
+              },
+              {
+                "id": "K_V",
+                "text": "ឞ"
+              },
+              {
+                "id": "K_B",
+                "text": "ព"
+              },
+              {
+                "id": "K_N",
+                "text": "ណ"
+              },
+              {
+                "id": "K_M",
+                "text": "ំ"
+              },
+              {
+                "id": "K_COMMA",
+                "text": "៝"
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "។"
+              },
+              {
+                "id": "K_SLASH",
+                "text": "?"
+              },
+              {
+                "id": "K_BKQUOTE",
+                "text": "~"
+              },
+              {
+                "id": "T_new_335",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 5,
+            "key": [
+              {
+                "id": "K_LCONTROL",
+                "text": "*Alt*",
+                "width": 130,
+                "sp": 1,
+                "nextlayer": "ctrl-alt",
+                "sk": [
+                  {
+                    "text": "*AltShift*",
+                    "id": "K_LCONTROL",
+                    "sp": 1,
+                    "nextlayer": "shift-ctrl-alt"
+                  }
+                ]
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 140,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "ZWJ",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 145,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "id": "ctrl-alt",
+        "row": [
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+            "id": 1,
+            "key": [
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+                "id": "K_1",
+                "text": "1"
+              },
+              {
+                "id": "K_2",
+                "text": "2"
+              },
+              {
+                "id": "K_3",
+                "text": "3"
+              },
+              {
+                "id": "K_4",
+                "text": "4"
+              },
+              {
+                "id": "K_5",
+                "text": "5"
+              },
+              {
+                "id": "K_6",
+                "text": "6"
+              },
+              {
+                "id": "K_7",
+                "text": "7"
+              },
+              {
+                "id": "K_8",
+                "text": "8"
+              },
+              {
+                "id": "K_9",
+                "text": "9"
+              },
+              {
+                "id": "K_0",
+                "text": "0"
+              },
+              {
+                "id": "K_HYPHEN",
+                "text": "{"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "}"
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 2,
+            "key": [
+              {
+                "id": "K_Q",
+                "text": "*",
+                "pad": 75
+              },
+              {
+                "id": "K_W"
+              },
+              {
+                "id": "K_E",
+                "text": "ឯ"
+              },
+              {
+                "id": "K_R",
+                "text": "ឫ"
+              },
+              {
+                "id": "K_T",
+                "text": "ឦ"
+              },
+              {
+                "id": "K_Y"
+              },
+              {
+                "id": "K_U",
+                "text": "ឧ"
+              },
+              {
+                "id": "K_I",
+                "text": "ឥ"
+              },
+              {
+                "id": "K_O",
+                "text": "ឱ"
+              },
+              {
+                "id": "K_P",
+                "text": "ឳ"
+              },
+              {
+                "id": "K_LBRKT",
+                "text": "["
+              },
+              {
+                "id": "K_RBRKT",
+                "text": "]"
+              },
+              {
+                "id": "T_new_1312",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 3,
+            "key": [
+              {
+                "id": "K_A",
+                "text": "ឩ"
+              },
+              {
+                "id": "K_S",
+                "text": "ឪ"
+              },
+              {
+                "id": "K_D",
+                "text": "ឣ"
+              },
+              {
+                "id": "K_F",
+                "text": "ឤ"
+              },
+              {
+                "id": "K_G",
+                "text": "឴"
+              },
+              {
+                "id": "K_H",
+                "text": "឵"
+              },
+              {
+                "id": "K_J",
+                "text": "ឮ"
+              },
+              {
+                "id": "K_K",
+                "text": "ឭ"
+              },
+              {
+                "id": "K_L",
+                "text": "ឰ"
+              },
+              {
+                "id": "K_COLON",
+                "text": ";"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "៝"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "៚"
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
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+                "id": "K_SHIFT",
+                "text": "*Shift*",
+                "width": 160,
+                "sp": 1,
+                "nextlayer": "shift"
+              },
+              {
+                "id": "K_Z",
+                "text": "#"
+              },
+              {
+                "id": "K_X",
+                "text": "@"
+              },
+              {
+                "id": "K_C",
+                "text": "&"
+              },
+              {
+                "id": "K_V",
+                "text": "$"
+              },
+              {
+                "id": "K_B",
+                "text": "%"
+              },
+              {
+                "id": "K_N",
+                "text": "("
+              },
+              {
+                "id": "K_M",
+                "text": ")"
+              },
+              {
+                "id": "K_COMMA",
+                "text": "‹"
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "›"
+              },
+              {
+                "id": "K_SLASH",
+                "text": "៕"
+              },
+              {
+                "id": "K_BKQUOTE",
+                "text": "៙"
+              },
+              {
+                "id": "T_new_1338",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 5,
+            "key": [
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+                "id": "K_LCONTROL",
+                "text": "default",
+                "width": 130,
+                "sp": 1,
+                "nextlayer": "default",
+                "sk": [
+                  {
+                    "text": "*AltShift*",
+                    "id": "K_LCONTROL",
+                    "sp": 1,
+                    "nextlayer": "shift-ctrl-alt"
+                  }
+                ]
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 140,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "Four-per-em space",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 145,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "id": "shift-ctrl-alt",
+        "row": [
+          {
+            "id": 1,
+            "key": [
+              {
+                "id": "K_1",
+                "text": "᧡"
+              },
+              {
+                "id": "K_2",
+                "text": "᧢"
+              },
+              {
+                "id": "K_3",
+                "text": "᧣"
+              },
+              {
+                "id": "K_4",
+                "text": "᧤"
+              },
+              {
+                "id": "K_5",
+                "text": "᧥"
+              },
+              {
+                "id": "K_6",
+                "text": "᧦"
+              },
+              {
+                "id": "K_7",
+                "text": "᧧"
+              },
+              {
+                "id": "K_8",
+                "text": "᧨"
+              },
+              {
+                "id": "K_9",
+                "text": "᧩"
+              },
+              {
+                "id": "K_0",
+                "text": "᧪"
+              },
+              {
+                "id": "K_HYPHEN",
+                "text": "᧫"
+              },
+              {
+                "id": "K_EQUAL",
+                "text": "᧬"
+              },
+              {
+                "id": "K_BKSP",
+                "text": "*BkSp*",
+                "width": 100,
+                "sp": 1
+              }
+            ]
+          },
+          {
+            "id": 2,
+            "key": [
+              {
+                "id": "K_Q",
+                "text": "᧭",
+                "pad": 75
+              },
+              {
+                "id": "K_W",
+                "text": "᧮"
+              },
+              {
+                "id": "K_E",
+                "text": "᧯"
+              },
+              {
+                "id": "K_R",
+                "text": "៰"
+              },
+              {
+                "id": "K_T",
+                "text": "៱"
+              },
+              {
+                "id": "K_Y",
+                "text": "៲"
+              },
+              {
+                "id": "K_U",
+                "text": "៳"
+              },
+              {
+                "id": "K_I",
+                "text": "៴"
+              },
+              {
+                "id": "K_O",
+                "text": "៵"
+              },
+              {
+                "id": "K_P",
+                "text": "៶"
+              },
+              {
+                "id": "K_LBRKT",
+                "text": "៷"
+              },
+              {
+                "id": "K_RBRKT",
+                "text": "៸"
+              },
+              {
+                "id": "T_new_1743",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 3,
+            "key": [
+              {
+                "id": "K_A",
+                "text": "᧰"
+              },
+              {
+                "id": "K_S",
+                "text": "᧱"
+              },
+              {
+                "id": "K_D",
+                "text": "᧲"
+              },
+              {
+                "id": "K_F",
+                "text": "᧳"
+              },
+              {
+                "id": "K_G",
+                "text": "᧴"
+              },
+              {
+                "id": "K_H",
+                "text": "᧵"
+              },
+              {
+                "id": "K_J",
+                "text": "᧶"
+              },
+              {
+                "id": "K_K",
+                "text": "᧷"
+              },
+              {
+                "id": "K_L",
+                "text": "᧸"
+              },
+              {
+                "id": "K_COLON",
+                "text": "᧹"
+              },
+              {
+                "id": "K_QUOTE",
+                "text": "᧺"
+              },
+              {
+                "id": "K_BKSLASH",
+                "text": "៹"
+              }
+            ]
+          },
+          {
+            "id": 4,
+            "key": [
+              {
+                "id": "K_SHIFT",
+                "text": "*Shift*",
+                "width": 160,
+                "sp": 1,
+                "nextlayer": "shift"
+              },
+              {
+                "id": "K_Z",
+                "text": "᧻"
+              },
+              {
+                "id": "K_X",
+                "text": "᧼"
+              },
+              {
+                "id": "K_C",
+                "text": "᧽"
+              },
+              {
+                "id": "K_V",
+                "text": "᧾"
+              },
+              {
+                "id": "K_B",
+                "text": "᧿"
+              },
+              {
+                "id": "K_N",
+                "text": "៓"
+              },
+              {
+                "id": "K_M",
+                "text": "៘"
+              },
+              {
+                "id": "K_COMMA",
+                "text": "ៜ"
+              },
+              {
+                "id": "K_PERIOD",
+                "text": "ឝ"
+              },
+              {
+                "id": "K_SLASH",
+                "text": "ឞ"
+              },
+              {
+                "id": "K_BKQUOTE",
+                "text": "᧠"
+              },
+              {
+                "id": "T_new_1769",
+                "width": 10,
+                "sp": 10
+              }
+            ]
+          },
+          {
+            "id": 5,
+            "key": [
+              {
+                "id": "K_LCONTROL",
+                "text": "default",
+                "width": 130,
+                "sp": 1,
+                "nextlayer": "default",
+                "sk": [
+                  {
+                    "text": "*Alt*",
+                    "id": "K_LCONTROL",
+                    "sp": 1,
+                    "nextlayer": "ctrl-alt"
+                  }
+                ]
+              },
+              {
+                "id": "K_LOPT",
+                "text": "*Menu*",
+                "width": 140,
+                "sp": 1
+              },
+              {
+                "id": "K_SPACE",
+                "text": "En space",
+                "width": 930
+              },
+              {
+                "id": "K_ENTER",
+                "text": "*Enter*",
+                "width": 145,
+                "sp": 1
+              }
+            ]
+          }
+        ]
+      }
+    ],
+    "font": "Khmer Busra",
+    "fontsize": ""
+  }
+}
\ No newline at end of file
diff --git a/developer/src/kmc-analyze/test/fixtures/khmer/sil_khmer.kvks b/developer/src/kmc-analyze/test/fixtures/khmer/sil_khmer.kvks
new file mode 100644
index 00000000000..b88fe04b779
--- /dev/null
+++ b/developer/src/kmc-analyze/test/fixtures/khmer/sil_khmer.kvks
@@ -0,0 +1,217 @@
+<?xml version="1.0" encoding="utf-8"?>
+<visualkeyboard>
+  <header>
+    <version>10.0</version>
+    <kbdname>sil_khmer</kbdname>
+    <flags/>
+  </header>
+  <encoding name="unicode" fontname="KbdKhmr" fontsize="12">
+    <layer shift="C">
+      <key vkey="K_SPACE">ZWNJ</key>
+    </layer>
+    <layer shift="S">
+      <key vkey="K_SPACE">ZWJ</key>
+      <key vkey="K_QUOTE">៉</key>
+      <key vkey="K_4">៛</key>
+      <key vkey="K_7">័</key>
+      <key vkey="K_9">(</key>
+      <key vkey="K_0">)</key>
+      <key vkey="K_EQUAL">៎</key>
+      <key vkey="K_COLON">ះ</key>
+      <key vkey="K_COMMA">៝</key>
+      <key vkey="K_PERIOD">។</key>
+      <key vkey="K_2">ៗ</key>
+      <key vkey="K_A">ៅ</key>
+      <key vkey="K_B">ព</key>
+      <key vkey="K_C">ជ</key>
+      <key vkey="K_D">ឌ</key>
+      <key vkey="K_E">ែ</key>
+      <key vkey="K_F">ធ</key>
+      <key vkey="K_G">អ</key>
+      <key vkey="K_H">៖</key>
+      <key vkey="K_I">ី</key>
+      <key vkey="K_K">គ</key>
+      <key vkey="K_L">ឡ</key>
+      <key vkey="K_M">ំ</key>
+      <key vkey="K_N">ណ</key>
+      <key vkey="K_O">ឿ</key>
+      <key vkey="K_P">ភ</key>
+      <key vkey="K_Q">ឈ</key>
+      <key vkey="K_R">ើ</key>
+      <key vkey="K_S">ឝ</key>
+      <key vkey="K_T">ទ</key>
+      <key vkey="K_U">ូ</key>
+      <key vkey="K_V">ឞ</key>
+      <key vkey="K_W">ឺ</key>
+      <key vkey="K_X">ឃ</key>
+      <key vkey="K_Y">ួ</key>
+      <key vkey="K_Z">ឍ</key>
+      <key vkey="K_6">;</key>
+      <key vkey="K_HYPHEN">៍</key>
+      <key vkey="K_LBRKT">ឪ</key>
+      <key vkey="K_BKSLASH">ឬ</key>
+      <key vkey="K_RBRKT">ឥ</key>
+      <key vkey="K_SLASH">?</key>
+      <key vkey="K_BKQUOTE">~</key>
+      <key vkey="K_1">!</key>
+      <key vkey="K_3">#</key>
+      <key vkey="K_5">%</key>
+      <key vkey="K_8">*</key>
+      <key vkey="K_J">ៜ</key>
+    </layer>
+    <layer shift="A">
+      <key vkey="K_SPACE">Hair space</key>
+    </layer>
+    <layer shift="SC">
+      <key vkey="K_SPACE">Thin space</key>
+    </layer>
+    <layer shift="CA">
+      <key vkey="K_SPACE">Four-per-em space</key>
+      <key vkey="K_QUOTE">៝</key>
+      <key vkey="K_COMMA">‹</key>
+      <key vkey="K_HYPHEN">{</key>
+      <key vkey="K_PERIOD">›</key>
+      <key vkey="K_SLASH">៕</key>
+      <key vkey="K_0">0</key>
+      <key vkey="K_1">1</key>
+      <key vkey="K_2">2</key>
+      <key vkey="K_3">3</key>
+      <key vkey="K_4">4</key>
+      <key vkey="K_5">5</key>
+      <key vkey="K_6">6</key>
+      <key vkey="K_7">7</key>
+      <key vkey="K_8">8</key>
+      <key vkey="K_9">9</key>
+      <key vkey="K_COLON">;</key>
+      <key vkey="K_EQUAL">}</key>
+      <key vkey="K_LBRKT">[</key>
+      <key vkey="K_BKSLASH">៚</key>
+      <key vkey="K_RBRKT">]</key>
+      <key vkey="K_BKQUOTE">៙</key>
+      <key vkey="K_A">ឩ</key>
+      <key vkey="K_B">%</key>
+      <key vkey="K_C">&amp;</key>
+      <key vkey="K_D">ឣ</key>
+      <key vkey="K_E">ឯ</key>
+      <key vkey="K_F">ឤ</key>
+      <key vkey="K_G">឴</key>
+      <key vkey="K_H">឵</key>
+      <key vkey="K_I">ឥ</key>
+      <key vkey="K_J">ឮ</key>
+      <key vkey="K_K">ឭ</key>
+      <key vkey="K_L">ឰ</key>
+      <key vkey="K_M">)</key>
+      <key vkey="K_N">(</key>
+      <key vkey="K_O">ឱ</key>
+      <key vkey="K_P">ឳ</key>
+      <key vkey="K_Q">*</key>
+      <key vkey="K_R">ឫ</key>
+      <key vkey="K_S">ឪ</key>
+      <key vkey="K_T">ឦ</key>
+      <key vkey="K_U">ឧ</key>
+      <key vkey="K_V">$</key>
+      <key vkey="K_X">@</key>
+      <key vkey="K_Z">#</key>
+    </layer>
+    <layer shift="SCA">
+      <key vkey="K_SPACE">En space</key>
+      <key vkey="K_1">᧡</key>
+      <key vkey="K_QUOTE">᧺</key>
+      <key vkey="K_3">᧣</key>
+      <key vkey="K_4">᧤</key>
+      <key vkey="K_5">᧥</key>
+      <key vkey="K_7">᧧</key>
+      <key vkey="K_9">᧩</key>
+      <key vkey="K_0">᧪</key>
+      <key vkey="K_8">᧨</key>
+      <key vkey="K_EQUAL">᧬</key>
+      <key vkey="K_COLON">᧹</key>
+      <key vkey="K_COMMA">ៜ</key>
+      <key vkey="K_PERIOD">ឝ</key>
+      <key vkey="K_SLASH">ឞ</key>
+      <key vkey="K_2">᧢</key>
+      <key vkey="K_A">᧰</key>
+      <key vkey="K_B">᧿</key>
+      <key vkey="K_C">᧽</key>
+      <key vkey="K_D">᧲</key>
+      <key vkey="K_E">᧯</key>
+      <key vkey="K_F">᧳</key>
+      <key vkey="K_G">᧴</key>
+      <key vkey="K_H">᧵</key>
+      <key vkey="K_I">៴</key>
+      <key vkey="K_J">᧶</key>
+      <key vkey="K_K">᧷</key>
+      <key vkey="K_L">᧸</key>
+      <key vkey="K_M">៘</key>
+      <key vkey="K_N">៓</key>
+      <key vkey="K_O">៵</key>
+      <key vkey="K_P">៶</key>
+      <key vkey="K_Q">᧭</key>
+      <key vkey="K_R">៰</key>
+      <key vkey="K_S">᧱</key>
+      <key vkey="K_T">៱</key>
+      <key vkey="K_U">៳</key>
+      <key vkey="K_V">᧾</key>
+      <key vkey="K_W">᧮</key>
+      <key vkey="K_X">᧼</key>
+      <key vkey="K_Y">៲</key>
+      <key vkey="K_Z">᧻</key>
+      <key vkey="K_6">᧦</key>
+      <key vkey="K_HYPHEN">᧫</key>
+      <key vkey="K_LBRKT">៷</key>
+      <key vkey="K_BKSLASH">៹</key>
+      <key vkey="K_RBRKT">៸</key>
+      <key vkey="K_BKQUOTE">᧠</key>
+    </layer>
+    <layer shift="">
+      <key vkey="K_SPACE">Zero width space</key>
+      <key vkey="K_QUOTE">៊</key>
+      <key vkey="K_COMMA">,</key>
+      <key vkey="K_PERIOD">space</key>
+      <key vkey="K_SLASH">\</key>
+      <key vkey="K_0">០</key>
+      <key vkey="K_1">១</key>
+      <key vkey="K_2">២</key>
+      <key vkey="K_3">៣</key>
+      <key vkey="K_4">៤</key>
+      <key vkey="K_5">៥</key>
+      <key vkey="K_6">៦</key>
+      <key vkey="K_7">៧</key>
+      <key vkey="K_8">៨</key>
+      <key vkey="K_9">៩</key>
+      <key vkey="K_COLON">្</key>
+      <key vkey="K_LBRKT">ឲ្យ</key>
+      <key vkey="K_BKSLASH">ឮ</key>
+      <key vkey="K_RBRKT">ខ្ញុំ</key>
+      <key vkey="K_BKQUOTE">់</key>
+      <key vkey="K_A">ា</key>
+      <key vkey="K_B">ប</key>
+      <key vkey="K_C">ច</key>
+      <key vkey="K_D">ដ</key>
+      <key vkey="K_E">េ</key>
+      <key vkey="K_F">ថ</key>
+      <key vkey="K_G">ង</key>
+      <key vkey="K_H">ហ</key>
+      <key vkey="K_I">ិ</key>
+      <key vkey="K_J">ញ</key>
+      <key vkey="K_K">ក</key>
+      <key vkey="K_L">ល</key>
+      <key vkey="K_M">ម</key>
+      <key vkey="K_N">ន</key>
+      <key vkey="K_O">ៀ</key>
+      <key vkey="K_P">ផ</key>
+      <key vkey="K_Q">ឆ</key>
+      <key vkey="K_R">រ</key>
+      <key vkey="K_S">ស</key>
+      <key vkey="K_T">ត</key>
+      <key vkey="K_U">ុ</key>
+      <key vkey="K_V">វ</key>
+      <key vkey="K_W">ឹ</key>
+      <key vkey="K_X">ខ</key>
+      <key vkey="K_Y">យ</key>
+      <key vkey="K_Z">ឋ</key>
+      <key vkey="K_HYPHEN">-</key>
+      <key vkey="K_EQUAL">=</key>
+    </layer>
+  </encoding>
+</visualkeyboard>
diff --git a/developer/src/kmc-analyze/test/helpers/index.ts b/developer/src/kmc-analyze/test/helpers/index.ts
new file mode 100644
index 00000000000..2341396ee01
--- /dev/null
+++ b/developer/src/kmc-analyze/test/helpers/index.ts
@@ -0,0 +1,20 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ *
+ * Helpers and utilities for the Mocha tests.
+ */
+import * as path from 'path';
+import { fileURLToPath } from 'url';
+
+/**
+ * Builds a path to the fixture with the given path components.
+ *
+ * e.g., makePathToFixture('example.qaa.trivial')
+ * e.g., makePathToFixture('example.qaa.trivial', 'model.ts')
+ *
+ * @param components One or more path components.
+ */
+ export function makePathToFixture(...components: string[]): string {
+  return fileURLToPath(new URL(path.join('..', '..', '..', 'test', 'fixtures', ...components), import.meta.url));
+}
+
diff --git a/developer/src/kmc-analyze/test/test-analyzer-messages.ts b/developer/src/kmc-analyze/test/test-analyzer-messages.ts
new file mode 100644
index 00000000000..c6fced09454
--- /dev/null
+++ b/developer/src/kmc-analyze/test/test-analyzer-messages.ts
@@ -0,0 +1,29 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ */
+// import { assert } from 'chai';
+import 'mocha';
+import { AnalyzerMessages } from '../src/analyzer-messages.js';
+import { TestCompilerCallbacks, verifyCompilerMessagesObject } from '@keymanapp/developer-test-helpers';
+import { CompilerErrorNamespace } from '@keymanapp/developer-utils';
+
+describe('AnalyzerMessages', function () {
+
+  const callbacks = new TestCompilerCallbacks();
+
+  this.beforeEach(function() {
+    callbacks.clear();
+  });
+
+  this.afterEach(function() {
+    if(this.currentTest?.isFailed()) {
+      callbacks.printMessages();
+    }
+  });
+
+  it('should have a valid AnalyzerMessages object', function() {
+    return verifyCompilerMessagesObject(AnalyzerMessages, CompilerErrorNamespace.Analyzer);
+  });
+
+  // TODO: test each message
+});
diff --git a/developer/src/kmc-analyze/test/test-osk-character-use.ts b/developer/src/kmc-analyze/test/test-osk-character-use.ts
new file mode 100644
index 00000000000..dac60dcfb66
--- /dev/null
+++ b/developer/src/kmc-analyze/test/test-osk-character-use.ts
@@ -0,0 +1,108 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ */
+import * as fs from 'fs';
+import { assert } from 'chai';
+import 'mocha';
+import { makePathToFixture } from './helpers/index.js';
+import { AnalyzeOskCharacterUse } from '../src/osk-character-use/index.js';
+import { TestCompilerCallbacks } from '@keymanapp/developer-test-helpers';
+
+const KHMER_ANGKOR_TOUCH_LAYOUT = makePathToFixture('khmer', "khmer_angkor.keyman-touch-layout");
+const KHMER_ANGKOR_KVKS = makePathToFixture('khmer', "khmer_angkor.kvks");
+const KBDKHMR_JSON = makePathToFixture('khmer', "KbdKhmr.json");
+
+const SIL_KHMER_TOUCH_LAYOUT = makePathToFixture('khmer', "sil_khmer.keyman-touch-layout");
+const SIL_KHMER_KVKS = makePathToFixture('khmer', "sil_khmer.kvks");
+const KBDKHMR_WITH_SIL_KHMER_JSON = makePathToFixture('khmer', "KbdKhmr-with-sil_khmer.json");
+
+describe('AnalyzeOskCharacterUse', function () {
+  const callbacks = new TestCompilerCallbacks();
+
+  this.beforeEach(function() {
+    callbacks.clear();
+  });
+
+  this.afterEach(function() {
+    if(this.currentTest?.isFailed()) {
+      callbacks.printMessages();
+    }
+  });
+
+  it('generates a mapping file from 2 input files', async function() {
+    // functional test
+    const a = new AnalyzeOskCharacterUse(callbacks, {
+      includeCounts: false,
+      stripDottedCircle: true,
+    });
+
+    assert.isTrue(await a.analyze(KHMER_ANGKOR_TOUCH_LAYOUT));
+    assert.isTrue(await a.analyze(KHMER_ANGKOR_KVKS));
+
+    const expected = JSON.parse(fs.readFileSync(KBDKHMR_JSON, 'utf-8'));
+    const actual = JSON.parse(a.getStrings(".json").join(''));
+    assert.deepEqual(actual, expected);
+  });
+
+  it('extends an existing mapping file with 2 more input files', async function() {
+    // functional test
+    const a = new AnalyzeOskCharacterUse(callbacks, {
+      includeCounts: false,
+      stripDottedCircle: true,
+      mergeMapFile: KBDKHMR_JSON,
+    });
+
+    assert.isTrue(await a.analyze(SIL_KHMER_TOUCH_LAYOUT));
+    assert.isTrue(await a.analyze(SIL_KHMER_KVKS));
+
+    const expected = JSON.parse(fs.readFileSync(KBDKHMR_WITH_SIL_KHMER_JSON, 'utf-8'));
+    const actual = JSON.parse(a.getStrings(".json").join(''));
+    assert.deepEqual(actual, expected);
+  });
+
+  it('loads an existing mapping file round trip', async function() {
+    // functional test
+    const a = new AnalyzeOskCharacterUse(callbacks, {
+      includeCounts: false,
+      stripDottedCircle: true,
+      mergeMapFile: KBDKHMR_JSON,
+    });
+
+    const expected = JSON.parse(fs.readFileSync(KBDKHMR_JSON, 'utf-8'));
+    const actual = JSON.parse(a.getStrings(".json").join(''));
+    assert.deepEqual(actual, expected);
+  });
+
+  it('has no effect if the mapping has not changed', async function() {
+    // functional test
+    const a = new AnalyzeOskCharacterUse(callbacks, {
+      includeCounts: false,
+      stripDottedCircle: true,
+      mergeMapFile: KBDKHMR_JSON,
+    });
+
+    assert.isTrue(await a.analyze(KHMER_ANGKOR_TOUCH_LAYOUT));
+    assert.isTrue(await a.analyze(KHMER_ANGKOR_KVKS));
+
+    const expected = JSON.parse(fs.readFileSync(KBDKHMR_JSON, 'utf-8'));
+    const actual = JSON.parse(a.getStrings(".json").join(''));
+    assert.deepEqual(actual, expected);
+  });
+
+  it('has no effect if the mapping has not changed, regardless of processing order', async function() {
+    // functional test
+    const a = new AnalyzeOskCharacterUse(callbacks, {
+      includeCounts: false,
+      stripDottedCircle: true,
+      mergeMapFile: KBDKHMR_JSON,
+    });
+
+    assert.isTrue(await a.analyze(KHMER_ANGKOR_KVKS));
+    assert.isTrue(await a.analyze(KHMER_ANGKOR_TOUCH_LAYOUT));
+
+    const expected = JSON.parse(fs.readFileSync(KBDKHMR_JSON, 'utf-8'));
+    const actual = JSON.parse(a.getStrings(".json").join(''));
+    assert.deepEqual(actual, expected);
+  });
+
+});
diff --git a/developer/src/kmc-analyze/test/tsconfig.json b/developer/src/kmc-analyze/test/tsconfig.json
new file mode 100644
index 00000000000..01cc026dc10
--- /dev/null
+++ b/developer/src/kmc-analyze/test/tsconfig.json
@@ -0,0 +1,18 @@
+{
+  "extends": "../../kmc/tsconfig.kmc-base.json",
+
+  "compilerOptions": {
+      "rootDir": ".",
+      "rootDirs": ["./", "../src/"],
+      "outDir": "../build/test",
+      "baseUrl": ".",
+  },
+  "include": [
+      "**/test-*.ts",
+      "helpers/*.ts",
+  ],
+  "references": [
+      { "path": "../" },
+      { "path": "../../common/web/test-helpers/" },
+    ]
+}
\ No newline at end of file
diff --git a/developer/src/kmc/src/commands/analyze.ts b/developer/src/kmc/src/commands/analyze.ts
index 5085262f07b..65119c30d93 100644
--- a/developer/src/kmc/src/commands/analyze.ts
+++ b/developer/src/kmc/src/commands/analyze.ts
@@ -19,6 +19,7 @@ interface AnalysisActivityOptions /* not inheriting from CompilerBaseOptions */
   stripDottedCircle?: boolean;
   includeCounts?: boolean;
   mappingFile?: string;
+  inputMappingFile?: string;
 };
 
 export function declareAnalyze(program: Command) {
@@ -35,6 +36,7 @@ function declareOskCharUse(command: Command) {
     .option('-b, --base', 'First PUA codepoint to use, in hexadecimal (default F100)', 'F100')
     .option('--include-counts', 'Include number of times each character is referenced', false)
     .option('--strip-dotted-circle', 'Strip U+25CC (dotted circle base) from results', false)
+    .option('-i, --input-mapping-file <filename>', 'Merge result file with existing mapping file')
     .addOption(new Option('-m, --mapping-file <filename>', 'Result file to write to (.json, .md, or .txt)').makeOptionMandatory())
     .action(async (filenames: string[], _options: any, commander: any): Promise<never|void> => {
       const options = commander.optsWithGlobals();
@@ -95,6 +97,7 @@ async function analyzeOskCharUse(callbacks: CompilerCallbacks, filenames: string
     puaBase: parseInt(options.base, 16),
     stripDottedCircle: options.stripDottedCircle,
     includeCounts: options.includeCounts,
+    mergeMapFile: options.inputMappingFile
   });
 
   if(!await runOnFiles(callbacks, filenames, analyzer.analyze.bind(analyzer))) {