Undo function for mixer and plugins/instruments

Would help workflow to have undo functionality in mixer and cubase plugins and instruments.

An undo on the plugin +1.

Sort of like Waves plugins.

Another thing I wish for, but I am not sure how to implement… is that I often make a move in a plugin, but I forget to hit B and mess up my A settings.

Either give us undo, give me a revert button (settings go back to when the plugin was 1st opened) or create a way for user to specify that a new move goes directly to B and leaves A unchanged.