[Playing alone double, trip, quads]
It is simply to allow a player to be several players in team games (doubles, trips and quads). That way, you could have two players palying one against each other in a quad game for example, they would just be players 1, 2, 3 and 4, or one player playing against a team. We may discuss if the option should be limited to sequential games or could be extended to freestyle games too.
Not a lot more to say. For points, I would imagine that the simplest would be to credit/take out twice, three times or four times the number of points when someone is playing for two, three or four players.
How this will benefit the site and/or other comments:
Obviously quads involve much more strategy than a simple one to one game. I think this could be a nice and simple option to create games where strategy would play a greater role. It would also allow for example two teammate to play quads against two other people or against four!