I don't think you can access plugin parameters directly. It's kind of frustrating. You have to add FMOD parameter/automation to the various Csound knobs you want to control. Then in the game engine you manipulate the FMOD parameters. Btw, what engine are you using? I usually bypass FMOD and just use Csound if I'm using Unity. UE4 is another issue.
Btw, the sublime package was not my original work. I merely consolidated it with some other packages, but I'm happy to hear you're finding it useful