Hopefully that is something that will be added after launch. It doesn't violate any copyrights anymore than a GM sharing with players does now. Being able to Co-GM or host for a GM would be a significant feature improvement, as right now, FG penalizes people for not having the money for the multitude of materials from being able to effectively GM...whereas in an in-person group doesn't have that same restriction....I buy the materials and they use them when they are playing with me...
In this case, I buy the materials, but I want to play instead of GM:
- I host the game, but transfer GM rights to FG Licensee XYZ who has connected to my campaign, my materials are shared with the GM and the players as if the GM was on my account. GM and Player view rights end when they disconnect. Or,
- FG Licensee XYZ hosts the game as GM, and prompts my client to provide access to materials related to the ruleset. GM obtains access as if he was on my account and it acts the same way. GM and Player view rights end when they disconnect.
Note, that neither of these options provide access to the materials that they could not gain by my sharing options as GM, so there shouldn't be any licensing issues.
I would say that the GM would have to have at least a standard license (since if they can afford Ultimate, it would seem that they should be able to afford materials too).
Anyhow, just my 2 cents...feel free to agree or disagree