Remove playback gain from "Undo" action list

I growl every time I have to “Undo gain” just to get to the action before that (typically recording) after I’ve adjusted the gain to listen to the playback. IMO, gain shouldn’t be in the line of undo actions since it’s only a playback volume setting and has nothing to do with recording or other actions affecting the track. Is there any chance of you removing track gain from the Undo list? Many, many, many thanks!