Are application profile keys or attributes limited to GL enviroment variables only!?

Okay so I’m trying to use application profile settings and I’d like to set a custom fxaa value for a specific application. Reading this: http://us.download.nvidia.com/XFree86/Linux-x86/331.38/README/profiles.html#ListOfSupportedd38df. Am to understand that this application profile has no support for any sort of decent manipulation of settings besides this extremely short list or am I mistaken?