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