It would be great if content from a page can be dynamically embedded into another page - something Bookstack can do.
Use case: You have controlled documents that change infrequently, such as policies and procedures. A user in a department creates an uncontrolled document and wants to reference, by embedding, the controlled document or a portion of it. If the controlled doc is updated later at some point in the future, this will update immediately in the uncontrolled document contents.
To clarify, this is not a reference link that opens up another page. This is a block of content from page A that is inserted into page B, and when page A is updated, that content block in page B is updated in real-time also. Benefits include ensuring that everyone has the same source of truth and cuts down on page maintenance caused by edits up-stream.
(Apologies if this has been raised before or already exists, I'm new here. I had a fair search for this feature.)