I am testing out roll20 and going to use it to run multiple adventures with my Edge of the Empire Group. I signed up for mentor so I have access to the full API stuff. My question is what is the best way to handle campaigns. I want to load the dice app. Character sheets. And maybe make some stuff also. Should I make one campaign and all my adventures go into that OR do I make a campaign per adventure. IF I do this how do I create things that are usable across different campaigns?