I am new to Roll20 but have already started using it to run games. As I get used to the environment and become more sophisticated in my setup I am perceiving a problem with my campaign. I will run a large number of modules for my online players with unique maps, NPCs, tokens, etc... But having all those maps in a single campaign view will start to become cumbersome. Someone suggested to me that each module could be its own campaign that I invite my players to join. But that seems cumbersome in a different way. Is there a way to build out my module and then group all the elements (maps, etc...) that make it up into something that gets stored in the larger campaign in some way that I can then call up the right module for us to play? I've done some searching, but I end up in articles that address everything but this. Some guidance would really help.