Probably not using the right terminology here, but you'll get the point Every year/season Wizards of the Coast releases ~20 modules. Season 9 all of them are on roll20 but they are "standalone" meaning you have to make a new game each time. They offer four hours of play time. For me its probably 45 minutes of setup time to invite players, move characters, etc. every time. Roll20 you will sell more stuff if you do this. Maybe Wizards.com needs a direction on what setting to apply as some of their content does not have this painful limitation.