yes it will be nice to invit a third person while we are yet in room . And , talking about 3some , could be nice too to know who is the second person when we receve a 3some invit
One thing I've found that can be a little bothersome is when in a SSS 3some and your switching around. You will only rotate the positions when switching around so some combinations wont be possible unless you reenter the room in another way... I guess?