I added option groups to GNU TeXmacs. This is primarily (well, currently exclusively) used to save options for conversion to LaTeX. For example one can have an option set for inserting LaTeX snippets to a blog and an option set for creating articles for math journals.
My patch was not accepted by the main TeXmacs developer, Joris van der Hoeven. So I did a fork of TeXmacs code.
My fork of TeXmacs can be downloaded using Git from the following URLs:
I know I did the submenus in a wrong way. Please send me patches.