(form "00257" (size 44  6)
  (help "00257_TIP_0")
  (heading "HEIGHT OF INSTRUMENT STATION")
  (label (position  2  3) (text "Instrument"))
  (label (position  2  4) (text "Height"))
  (field "inst" (position 12  3) (display_length 16)
    (background) (input disallowed))
  (field "hi" (position 12  4) (display_length 12) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 12))
  (default_buttons)
)