Waterdeep: Dragon Heist Add-on Content

Hi! I am planning on including more than one "main" villain in my upcoming Dragon Heist campaign, and I read the notice that said I should only add one of the seasons to the game because adding more than one would cause issues. My question is, if I add one of the add-ons to my game, remove it (which supposedly keeps the maps and content there) and then add another, (and possibly repeat that again), will that still cause issues and create duplicate entries/overwrites like the notice said or is that a pretty safe bet on getting the other add-ons in my game? If that is not going to work is there a way for me to do it? 

I do not own the module, but I believe some maps (and possibly some characters and/or handouts) get overwritten when you apply the different add-ons. I would suggest you test things out in a test game before doing this on your active game. You may lose elements you wish to keep. If you had a Pro subscription you could use the Transmogrifier to copy things from one game to another easily. Without Pro, you can use the Character Vault to move characters and monsters. Maps and handouts would have to be done another way.

Yes adding more addon's isn't recommended. But I did and you can see the clear separation of seasons in the pages. But you must note these because the rooftops in the winter have different options that Rooftop in summer. 

Thank you for the replies! I ended up using the Transmogrifier to move over the specific maps I needed!