The implementation of Transclusion in TW is stellar.
I’ve been slowly updating BAM documentation to include syntax diagrams, and more often than not a syntax diagram for one (say) function is the exact same thing for a bunch of other functions.
For example, the BASIC functions COS and TAN have the same diagram, the only diff being the function keyword. So I create the diagram in COS and just transclude it in TAN.
To see what the documentation pages look like, see COS and TAN.
Pictures show it better than I could explain:
