How do I add Chains of Asmodeus to an existing game?

Greetings gamers, I have a long-running game with lots of content I want to continue using and I want to add the Chains of Asmodeus adventure to it. When I select the Game Addons drop down Chains of Asmodeus is not listed. I can create a new game using that Adventure but I really want it in my existing game as I have tons of handouts, macros, tokens, etc. that I really don't want to have to reproduce in a new game. Any suggestions?

The marketplace listing  doesn't seem to have an Addon. It lists Adventure Module, Compendium, and Art. You are a Pro subscriber though so you wouldn't have to reproduce things in a new game, you could copy over the handouts, characters, and macros and stuff with the  Transmogrifier . 

I believe Chains of Asmodeus is a module, not a game add-on. You'll need to create a new game with that module and then transmogrify it's contents into your existing game. Unfortunately you can't (yet) transmogrify the folder structure of a journal, so you'll have to organize all the handouts and NPCs manually.

Thanks. That's what I suspected.