Format: SET [NO]KEYPAD

 The SET KEYPAD (abbreviated SE K) option controls whether or not the
 editing keypad is to be used when you are in CHANGE mode.  KEYPAD is set
 by default for VT100 and VT52 terminals, which means the alternate
 keypad is used to enter change mode commands.  For terminals with
 function keys, the function keys can also be used in KEYPAD mode.