The functionality is shifted so that a key appearing in {HEAD ~ a certain position} relative to {TAIL ~ the display}, from the users perspective, always performs the same function 
relative to
The functionality is shifted so that a key appearing in { HEAD ~ a certain position } relative to { TAIL ~ the display } , from the users perspective , always performs the same function
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH