change display status of one or more of {HEAD ~ the plurality} of {TAIL ~ graphical user interface objects} when a time threshold expires in relation to the activity status associated with the graphical user interface object 
of
change display status of one or more of { HEAD ~ the plurality } of { TAIL ~ graphical user interface objects } when a time threshold expires in relation to the activity status associated with the graphical user interface object
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH