Is an A/B concept really unintuitive? I can't remember where, but I've seen it on other plugins (it's not an idea I've conjured up out of thin airSheeesh... we do have to find a middle way that's neither unintuitive for newbies nor insufficient for pros..
And manually saving and then managing (sorting, moving, deleting) multiple redundant patches is by a long way my biggest gripe for my pattern of use.
If it's a case of not wanting to clutter the UI with more stuff, fair enough. How about a hidden function - perhaps some keyboard work around: Shift A, Shift B or similar?
EDIT: Perhaps right clicking the undo/redo arrows could undo/redo *all* tweaks?
