[h3rald]

They are features of the documentation system itself, here's a simple example of macros:

https://h3rald.com/hastyscribe/HastyScribe_UserGuide.htm#Mac...

Basically it's like defining simple functions with parameters.

And here is a section about transclusion, which is a fancy tech writing word to say "include text from another file":

https://h3rald.com/hastyscribe/HastyScribe_UserGuide.htm#Tra...