I wish the queue button worked more like Spotify's Play Next. Sometimes I am listening to a station and I'd like to drop in 1 specific song without leaving the station. Basically prioritize the queue line and go back to the station/album/auto-play when the queue is empty. This wouldn't work well when queuing up whole stations, but I honestly don't understand that feature anyways - it seems like the point of a queue should be an automated list of songs you want to hear.
Moderator Edit: Edited title for clarity