diff --git a/Examples/ApiExamples/ApiExamples/ExCharts.cs b/Examples/ApiExamples/ApiExamples/ExCharts.cs
index 50ad4b42..39039473 100644
--- a/Examples/ApiExamples/ApiExamples/ExCharts.cs
+++ b/Examples/ApiExamples/ApiExamples/ExCharts.cs
@@ -2243,5 +2243,60 @@ public void TickLabelsOrientationRotation()
             doc.Save(ArtifactsDir + "Charts.TickLabelsOrientationRotation.docx");
             //ExEnd:TickLabelsOrientationRotation
         }
+
+        [Test]
+        public void DoughnutChart()
+        {
+            //ExStart:DoughnutChart
+            //GistId:bb594993b5fe48692541e16f4d354ac2
+            //ExFor:ChartSeriesGroup.DoughnutHoleSize
+            //ExFor:ChartSeriesGroup.FirstSliceAngle
+            //ExSummary:Shows how to create and format Doughnut chart.
+            Document doc = new Document();
+            DocumentBuilder builder = new DocumentBuilder(doc);
+
+            Shape shape = builder.InsertChart(ChartType.Doughnut, 400, 400);
+            Chart chart = shape.Chart;
+            // Delete the default generated series.
+            chart.Series.Clear();
+
+            string[] categories = new string[] { "Category 1", "Category 2", "Category 3" };
+            chart.Series.Add("Series 1", categories, new double[] { 4, 2, 5 });
+
+            // Format the Doughnut chart.
+            ChartSeriesGroup seriesGroup = chart.SeriesGroups[0];
+            seriesGroup.DoughnutHoleSize = 10;
+            seriesGroup.FirstSliceAngle = 270;
+
+            doc.Save(ArtifactsDir + "Charts.DoughnutChart.docx");
+            //ExEnd:DoughnutChart
+        }
+
+        [Test]
+        public void PieOfPieChart()
+        {
+            //ExStart:PieOfPieChart
+            //GistId:bb594993b5fe48692541e16f4d354ac2
+            //ExFor:ChartSeriesGroup.SecondSectionSize
+            //ExSummary:Shows how to create and format pie of Pie chart.
+            Document doc = new Document();
+            DocumentBuilder builder = new DocumentBuilder(doc);
+
+            Shape shape = builder.InsertChart(ChartType.PieOfPie, 440, 300);
+            Chart chart = shape.Chart;
+            // Delete the default generated series.
+            chart.Series.Clear();
+
+            string[] categories = new string[] { "Category 1", "Category 2", "Category 3", "Category 4" };
+            chart.Series.Add("Series 1", categories, new double[] { 11, 8, 4, 3 });
+
+            // Format the Pie of Pie chart.
+            ChartSeriesGroup seriesGroup = chart.SeriesGroups[0];
+            seriesGroup.GapWidth = 10;
+            seriesGroup.SecondSectionSize = 77;
+
+            doc.Save(ArtifactsDir + "Charts.PieOfPieChart.docx");
+            //ExEnd:PieOfPieChart
+        }
     }
 }
diff --git a/Examples/ApiExamples/ApiExamples/ExMarkdownSaveOptions.cs b/Examples/ApiExamples/ApiExamples/ExMarkdownSaveOptions.cs
index c901545a..960fdd41 100644
--- a/Examples/ApiExamples/ApiExamples/ExMarkdownSaveOptions.cs
+++ b/Examples/ApiExamples/ApiExamples/ExMarkdownSaveOptions.cs
@@ -245,6 +245,42 @@ public void LinkExportMode()
             string outDocContents = File.ReadAllText(ArtifactsDir + "MarkdownSaveOptions.LinkExportMode.Inline.md");
             Assert.AreEqual("![](MarkdownSaveOptions.LinkExportMode.Inline.001.png)", outDocContents.Trim());
         }
+
+        [Test]
+        public void ExportTableAsHtml()
+        {
+            //ExStart:ExportTableAsHtml
+            //GistId:bb594993b5fe48692541e16f4d354ac2
+            //ExFor:MarkdownExportAsHtml
+            //ExFor:MarkdownSaveOptions.ExportAsHtml
+            //ExSummary:Shows how to export a table to Markdown as raw HTML.
+            Document doc = new Document();
+            DocumentBuilder builder = new DocumentBuilder(doc);
+
+            builder.Writeln("Sample table:");
+
+            // Create table.
+            builder.InsertCell();
+            builder.ParagraphFormat.Alignment = ParagraphAlignment.Right;
+            builder.Write("Cell1");
+            builder.InsertCell();
+            builder.ParagraphFormat.Alignment = ParagraphAlignment.Center;
+            builder.Write("Cell2");
+
+            MarkdownSaveOptions saveOptions = new MarkdownSaveOptions();
+            saveOptions.ExportAsHtml = MarkdownExportAsHtml.Tables;
+
+            doc.Save(ArtifactsDir + "MarkdownSaveOptions.ExportTableAsHtml.md", saveOptions);
+            //ExEnd:ExportTableAsHtml
+
+            string outDocContents = File.ReadAllText(ArtifactsDir + "MarkdownSaveOptions.ExportTableAsHtml.md");
+            Assert.AreEqual("Sample table:\r\n<table cellspacing=\"0\" cellpadding=\"0\" style=\"width:100%; border:0.75pt solid #000000; border-collapse:collapse\">" +
+                "<tr><td style=\"border-right-style:solid; border-right-width:0.75pt; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top\">" +
+                "<p style=\"margin-top:0pt; margin-bottom:0pt; text-align:right; font-size:12pt\"><span style=\"font-family:'Times New Roman'\">Cell1</span></p>" +
+                "</td><td style=\"border-left-style:solid; border-left-width:0.75pt; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top\">" +
+                "<p style=\"margin-top:0pt; margin-bottom:0pt; text-align:center; font-size:12pt\"><span style=\"font-family:'Times New Roman'\">Cell2</span></p>" +
+                "</td></tr></table>", outDocContents.Trim());
+        }
     }
 }
 
diff --git a/Examples/ApiExamples/ApiExamples/ExPdfSaveOptions.cs b/Examples/ApiExamples/ApiExamples/ExPdfSaveOptions.cs
index 2ee9394b..3f507267 100644
--- a/Examples/ApiExamples/ApiExamples/ExPdfSaveOptions.cs
+++ b/Examples/ApiExamples/ApiExamples/ExPdfSaveOptions.cs
@@ -547,7 +547,7 @@ public void UsePdfDocumentForCompliance(PdfCompliance pdfCompliance)
                     Assert.AreEqual("2.0", pdfDocument.Version);
                     break;
                 case PdfCompliance.PdfA4:
-                    Assert.AreEqual(PdfFormat.v_2_0, pdfDocument.PdfFormat);
+                    Assert.AreEqual(PdfFormat.PDF_A_4, pdfDocument.PdfFormat);
                     Assert.AreEqual("2.0", pdfDocument.Version);
                     break;
                 case PdfCompliance.PdfA4Ua2:
diff --git a/Examples/ApiExamples/ApiExamples/ExShape.cs b/Examples/ApiExamples/ApiExamples/ExShape.cs
index 3a522742..12e36cfc 100644
--- a/Examples/ApiExamples/ApiExamples/ExShape.cs
+++ b/Examples/ApiExamples/ApiExamples/ExShape.cs
@@ -3400,5 +3400,69 @@ public void InsertGroupShape()
             doc.Save(ArtifactsDir + "Shape.InsertGroupShape.docx");
             //ExEnd:InsertGroupShape
         }
+
+        [Test]
+        public void CombineGroupShape()
+        {
+            //ExStart:CombineGroupShape
+            //GistId:bb594993b5fe48692541e16f4d354ac2
+            //ExFor:DocumentBuilder.InsertGroupShape(Shape[])
+            //ExSummary:Shows how to combine group shape with the shape.
+            Document doc = new Document();
+            DocumentBuilder builder = new DocumentBuilder(doc);
+
+            Shape shape1 = builder.InsertShape(ShapeType.Rectangle, 200, 250);
+            shape1.Left = 20;
+            shape1.Top = 20;
+            shape1.Stroke.Color = Color.Red;
+
+            Shape shape2 = builder.InsertShape(ShapeType.Ellipse, 150, 200);
+            shape2.Left = 40;
+            shape2.Top = 50;
+            shape2.Stroke.Color = Color.Green;
+
+            // Combine shapes into a GroupShape node which is inserted into the specified position.
+            GroupShape groupShape1 = builder.InsertGroupShape(shape1, shape2);
+
+            // Combine Shape and GroupShape nodes.
+            Shape shape3 = (Shape)shape1.Clone(true);
+            GroupShape groupShape2 = builder.InsertGroupShape(groupShape1, shape3);
+
+            doc.Save(ArtifactsDir + "Shape.CombineGroupShape.docx");
+            //ExEnd:CombineGroupShape
+        }
+
+        [Test]
+        public void InsertCommandButton()
+        {
+            //ExStart:InsertCommandButton
+            //GistId:bb594993b5fe48692541e16f4d354ac2
+            //ExFor:CommandButtonControl
+            //ExFor:DocumentBuilder.InsertForms2OleControl(Forms2OleControl)
+            //ExSummary:Shows how to insert ActiveX control.
+            DocumentBuilder builder = new DocumentBuilder();
+
+            CommandButtonControl button1 = new CommandButtonControl();
+            Shape shape = builder.InsertForms2OleControl(button1);
+            Assert.AreEqual(Forms2OleControlType.CommandButton, ((Forms2OleControl)shape.OleFormat.OleControl).Type);
+            //ExEnd:InsertCommandButton
+        }
+
+        [Test]
+        public void Hidden()
+        {
+            //ExStart:Hidden
+            //GistId:bb594993b5fe48692541e16f4d354ac2
+            //ExFor:ShapeBase.Hidden
+            //ExSummary:Shows how to hide the shape.
+            Document doc = new Document(MyDir + "Shadow color.docx");
+
+            Shape shape = (Shape)doc.GetChild(NodeType.Shape, 0, true);
+            if (!shape.Hidden)
+                shape.Hidden = true;
+
+            doc.Save(ArtifactsDir + "Shape.Hidden.docx");
+            //ExEnd:Hidden
+        }
     }
 }