Also i would love if you could make the undo and redo tools work even when the RNA is frozen since mistakes there have to be completely redone.
For context - the reason for this is because the undo stack is currently tied to the folding engine calculations, and the two are not trivial to decouple (same reason why you lose your undo history when changing energy models). Would certainly be great to get this resolved, but will require refactoring how that works.
that would be great thanks
you could make it so that each freeze has its own “undo stack” unrelated to the actual undo stack