New user, first post:
I like to edit the track numbers in multi-volume albums so I don't have two "Track 1"s. This is easy in the track listing; two single clicks in the track number puts me in edit mode. What happens next could be improved:
To complete the change, then move to the next track I have to click the next track. I prefer to do this with the keyboard. Most applications that I use allow the "Down arrow" key to do this in one easy step. It avoids having to move your hand from the keyboard to the mouse and back.
Of course, if there were an option in the "Track" field, "Re-Number", which I suggest would only appear when you had all of the displayed tracks selected, then I wouldn't have been here at all! 