Allow users to customise what options appear on the right click menu, similar to designing a toolbar
Keep the current options as a default, but let them add any menu or @commands they want
(So paste special could be there at last...)
Also add the 'copy as doclink', 'copy as table', ... functions which are under-used in my opinion because of that lack.
And allow cascading entries, there could be "copy as ..."
Also "Export as \ Structured Text" and "Export as \RTF"