Locate specific blocks within structures

[Azyrod]

I am trying to find Trial chamber structures that generate multiple Ominous Vaults within the same chunk.

I was hopping to use Cubiomes for that, but unfortunately there does not seem to be an option for that.
I do see the Lua script option, which makes me think that it should be doable, but I dont know much about Lua, and I also don't know where to find the reference for Lua functions provided by Cubiomes (it does not seem to be in the docs/ folder of the repo, nor in the readme...).

Is it something that can be done ?
If so, what would an example Lua script look like ? Or at least, where can I find the documentation ?