philharper@xxxxxxxxxxx (2003-09-26 at 1933.11 +0000):
I'd suggest to leave the C-R as default keybinding and hardcode the C-S-Z.
sounds like a good option, of course, it would confuse things if a user wants to apply SH+CT+Z to some other function(not sure why they'd want to, but it's possible).
Grouped undo, or call undo history, ie. Hardcoding would be more problem than help, btw.
I meant to hardcode it in such a way, that it could be reassigned by user keybinding preference to other function. Not that I think it's probable that anyone would reassign it to anything.
Tom Mraz