I bought all the 5E stuff I am the DM for one group (Group A) and a player in another group (group B). I'm trying to get Group B on the platform. the Group B DM would be fine to buy Avernus for $50 but doesn't want to buy everything I've already purchased. Can I just share my compendium's and have him purchase Avernus, or should I purchase Avernus but make him a GM in a game. Or give him my account password and share one account. thanks!