XEmacs feature missing in GNU Emacs? (was: XEmacs)

[Bastien]

glyn.millington@gmail.com writes:

> I suspect that one  reason for sticking with Xemacs now is lots of little
> customizations  and tweaks which don't easily transfer to Gnu Emacs - the
> same reason why I wouldn't willingly swap my init.el for yours, because
> it would change the way I work.

I changed the subject -- maybe this thread is an opportunity to get a
list of XEmacs features that would be nice to have in GNU Emacs.  I'm
not thinking of architectural differences, rather of small convenient
commands or options.

-- 
 Bastien