(form "00621" (size 54  9)
  (help "00621_TIP_0")
  (heading "CLEAR UNDO OPERATIONS")
  (label (position  2  3) 
    (text "Number of undo operations"))
  (field "undo_count" (position 30 3) (display_length 5) (input disallowed))

  (label (position  2  5) 
    (text "Press APPLY to clear all undo operations"))
  (label (position  2  6) 
    (text "Press CANCEL to retain undo operations"))
  (default_buttons)
)