I can't see it's possible, but I think allowing each individual webcam feed to be re-sized is a feature that is needed. When we are in a meeting, we don't need to see our feed as large as the other party, or at all. Services like Skype have had this as long as I can remember, and I'm surprised it's not implemented in G2M.
If I'm missing how to do that, forgive me and please tell me how.
Thanks.