Having spent some time and (A LOT) of effort creating custom decks (for example a Savage Worlds Adventure Deck, among others). Is there a way to transfer them between games owned by the same or different GMs? I currently have a 'testbed' game open to work with the 'how to' aspects of roll20, and it seems an awful waste of effort to have to reconstruct every custom resource from scratch when you open a new game. Have I missed something on how to do this?