(form "00631" (size 50  6)
  (help "00631_TIP_0")
  (heading "UNDO/REDO OPERATIONS")
  (label (position  2  3) (text "Revert to:"))
  (field "version_name" (position 15  3) (display_length 30) (input allowed)
    (max_length 40)
    (null disallowed))
  (default_buttons)
)