🚀 go-pugleaf

Hello Riley,
I am sure you're aware of the several reasons why your impressive solution will not work any better than a simple numbered grid in each master page that can be hidden or shown as desired. The grid and page number provide a basic reference point for identifying a point in the text for a particular version.

Of course, differences in spacing above and below any paragraph or object on the page will render both your solution and the master page grid solution ambiguous when a body para line falls exactly between two "line numbers" or "grid points".

How about simply extending a normal heading numbering scheme like 2.5.8.9 etc., to lines in a body text and insisting that body text paras cannot be more than one line. That way removing the line numbering is just a question of taking out autonumbering from body text.

Of course changing a long para will become a bit of a nuisance. But then so is the whole concept of line numbering which seems to been invented for documnts long before Word processing was invented, and only used in computers for the infamous GOTO in Basic programming.
FWIW
Cheers
Ian