Is there a way to get a new purchased module into your existing game?

Is there a way to get a new purchased module into your existing game? Or is there a way to copy existing journal files such as a self made monster manual and all the work I did in a current game that has not started to a new campaign without direct copy. An import if you will.

Basically I made a Wildemount game based on he physical copy I own. I eventually broke down and purchased the book via roll20 also. Now I would love to add the adventure module to my custom built game I have been working on for 2 weeks, without starting all over. There is a ton of add on info and hyperlink in the module though that long term would make my life easier. but would literally erase 100's of hours of work.

You are a pro user, so you can use the transmogrifier to copy content from a wildemount game or reversely you can create a wildemount game and transmogrify your content over.  Personally i created a 'Out Of The Box' game for each module/addon i bought. These games i leave untouched and then I use the transmogrifier to pull in content on the fly when needed. As knowing what to transmogrify might be a challenge, when running Tyrrany of Dragons, i open the game with players in chrome (browser one) and 'OOTB Tyrrany of Dragons' in firefox (browser two). This way of working keeps the game with players lean. And i open the transmogrifier once before play and minimize it instead of closing/reopen. The transmogrifier can be somewhat buggy when opening for a consequetive time.