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