{TAIL ~ The actuator knob} may be configured for {HEAD ~ rotational movement} between a lock position and an unlock position 
{ TAIL ~ The actuator knob } may be configured for { HEAD ~ rotational movement } between a lock position and an unlock position
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH