Thanks for the response.
The asset packs open as their own projects, but I’m able to easily move all of the assets into my main project and they still function correctly. The problem is that I have to change the gamemode in the “World Settings” to use the Adventure Kit character or the Physical Door character. Ideally, I’d like to use the Adventure Kit character as a base and add the other mechanics to it since the character is already setup for holding a lantern and related animations.