user-attributes-library?

is there a FILE in opusmodus where i can write/define my own attributes (for program-changes in conTIMBRE)...? ...like a  (USER-) LIBRARY?

the existing attributes like

   "... mouthpiece-backwards

    mouthpiece-only

    play-and-sing

    silent-brass

    snap-with-a-finger-on-the-bell

    stop-mute-closed

    stop-mute-open

    stop-mute-wahwah-effect

    without-mouthpiece

    air-noise-f ..."

are too "innacurate" (?) for me, i would need more, and very specific/personal...

thanx and regards 

andré