Thanks for the tip! Despite using emacs for decades, I never properly read the undo docs. I'll try binding the undo keystroke to "undo-only", and a redo to no

Thanks for the tip! Despite using emacs for decades, I never properly read the undo docs. I'll try binding the undo keystroke to "undo-only", and a redo to normal undo definition, to see if I can get something approximating undo/redo semantics.