COMPASS force field parameters

Hello,
I am quite new in using Materials Studio and have a question concerning the access and editing of COMPASS force field parameters. Is it correct that I can only access and edit parameters of DREIDING force field (which is the only force field defined as “standard” in the Forcite force field manager) or is there a way to include COMPASS into the “standard” section and access and edit its parameters? (Or is there a different way via scripting?)
I also read that the COMPASS force field is encrypted for commercial reasons. Does this mean that I am not able to access the parameters?
Many thanks for your help!
Jansen