Ability to turn turn on a Jukebox mode and share a link with friends at a party so they can add music to the queue and you can view the queue and reorder and stuff. And also have constraints on how many songs they can have on the queue at once.
I suppose this is what you’re looking for?
I suggest you vote/comment in that thread to avoid distracting/dispersing votes by having a duplicate suggestion. Therefore closing this one.