WPS Halt
  Halts scrolling caused by another operation, such as the WPS Scroll Backup
  key (GOLD-KP1) or WPS Scroll Advance key (GOLD-KP0).
  Key:   The WPS keypad defines GOLD-` (grave accent) as the Halt key.
  Usage notes:
  o  You can also halt scrolling by pressing any key---whether a typing key
     or a function key.  However, this executes the function assigned to
     that key, whereas pressing the WPS Halt key simply stops the scrolling
     without inserting text or making any other changes.
  o  Pressing the WPS Halt key also ends ("remembers") a LEARN sequence, if
     one is active.  Therefore, you cannot use WPS Halt in a learn sequence.
     See help on the REMEMBER command (CTRL/R).