  CLE function keys & <Ctrl> keys
    LEFTARROW	backup 1 character	   UPARROW	backup 1 command
    RIGHTARROW	advance 1 character	   DOWNARROW	advance 1 command
    GOLD_LEFT	backup to begin of cmd	   GOLD_UP	backup to oldest cmd
    GOLD_RIGHT	advance to end of command  GOLD_DOWN	advance to newest cmd
    ^A		overstrike/insert	   
    DELETE	delete 1 character left	   PF1		GOLD
    ^D		delete 1 char at cursor	   PF2		help
    ^B		delete to begin of cmd	   PF3		show status
    ^E		delete to end of command   PF4		show all commands
    ^R		redisplay command	   ^K		CLE/VMS <Ctrl> keys
    ^U		cancel command		   ^Z		exit CLE
 
  VMS <Ctrl> keys
    ^D		backup 1 character         ^B		backup 1 command
    ^F		advance 1 character
    ^H		backup to begin of cmd
    ^E		advance to end of command
    ^A		overstrike/insert
    ^R		redisplay command	   ^K		CLE/VMS <Ctrl> keys
    ^U		delete to begin of cmd	   ^Z		exit CLE
