[Chimera-users] Will ChimeraX be built with a universal undo?

I realise this is probably impossible to alter in the current version of chimera, but will the next-gen Chimera be built with a universal (or at least much expanded) undo function (or set of functions)? Or if not what are the devs thoughts on this - I know it is a complicated issue, but the capacity to backtrack after making a color change, deleting a selection, etc, would be very very welcome. Cheers, Oli