I don't know if anybody else has tried this but I have been using NoteTab light for years. There are three versions but so far I have been using the free light version. TextPad seems to be the favorite among serious code writers but this has so many options I have not used them all. I save many Lisp code snips in the Clip Library for easy insertion where I need them.
Though I use it for writing Lisp, I am sure it would do well for Menus too.
There are add-ons too that help with what I do including something that lets you compare files line-by-line. Don't use it much but when I need it I really need it.
Arnold Williams
Architectural Designer/CAD Coordinator
SCM Consultants, Inc.