Sometimes I repeat a certain operation a number of times, like changing a motive in a few measures or even a whole section, after which I then change my mind. In such and similar cases, it would perhaps be convenient to have something like a “bulk edit” mode and attendant undo/redo functionality.
By this I mean something like the following: you press a key combination whereby you enter “bulk edit” mode, you make your changes, you press the same key combination to leave “bulk edit” mode. Then, if you want to undo your changes, you simply press undo, and voilà, all the changes you made while in “bulk edit” mode disappear.