Ever been in a full 2v2 lobby with a full spectate ship and thought, "Man, we could totally fill a 3v3 right now?"
Ever been in a 3v3 or 4v4 lobby that had half emptied out and thought, "I'd love to have all these same people in a 2v2?"
I mean, I know you can always just make a new lobby, and hope that people follow you over, but it would be cool if there were an option for the participants to vote to add or subtract a pair of ships to the existing lobby.