I looked and it appears that this has been suggested before, it usually only gets one or two votes and then the suggestion expires. I'm hoping to get more support this time. Or better yet, look up how many times this suggestion (or variations of it) have been suggested and count up the total votes. I bet it has been enough over the years. Anyway, the group I'm running is doing the Mad mage. They have done the first couple of levels in Undermountain and have returned to the surface at Waterdeep. They want to do something else and not just grind down level to level of Undermountain. I want to send them someplace else; I'm thinking Wildemount. It would give them some seafaring adventures from Saltmarsh which is able to be added into the game. But Wildemount doesn't have that. It's a base module. So I would have to create a new game, copy their characters and all their loot, and then reinvite them into the new game. When they are finished with that continent and want to return to Waterdeep, I would have to copy their current characters and loot back into the old game. It would be so much easier if I could add Explorer's Guide to Wildemount into my Undermountain game and just keep on moving. Please make it possible to install modules into other modules.