Taking advantage of being locked-down all day; I've been playing further with potential suggestion for the GCode dictionary. The attached link only contains about half and is not polished / complete. But wanted to test/poc potential option (and selfishly I needed to learn capabilities of Github pages for another project).
The filters on the left side-bar allow either filtering by G/M codes, or the second level has groupings by tags. Then the top search allows for standard page searches also. It's not complete, however I will have time over the coming days/weeks to spend more time if it's useful.
pm me if interested/need further info.