Similar to this post, I'm curious whether it's possible to start a GMR game, play a few turns, and then when the 3 of my friends get together (except unlike the post I linked to, we're not all in the same physical location) convert it to a Standard game where we're able to play simultaneously, and then at the end of the night, convert it back to a GMR game.

I suspect that may not be possible given that it's jumping from hotseat to standard to hotseat, in a way, but, I figured I'd at least ask!