means for assigning {HEAD ~ an effects observable command} from each of the plurality of {TAIL ~ command sets} to one of said plurality of assignable user actuated switches or keys 
means for assigning { HEAD ~ an effects observable command } from each of the plurality of { TAIL ~ command sets } to one of said plurality of assignable user actuated switches or keys
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH