Recently, I've whipped up some homebrew subclasses for 5e that I plan to playtest with members of my group, and I asked one of the members who'd made a game for a previous homebrew playtest promote me to GM. I thought I'd use Kobold Press's Book of Lairs addon for the maps and encounters to save on prep time, but when GM duties transferred over to me, I found that there wasn't an option to add addons to the game. So does this mean only a game's creator can add addons, or is there some options I need to fiddle with to enable it?
