(form "00020" (size 55 11)
  (help "00020_TIP_0")
  (heading "CREATE A VARIABLE GRID IN A STRING FILE")
  (label (position  2  3) (text "Define the files to create"))
  (label (position  2  4) (text "Location"))
  (label (position  2  5) (text "ID range"))
  (label (position  2  6) (text "Y range"))
  (label (position  2  7) (text "X range"))
  (label (position  2  8) (text "Y string number"))
  (label (position  2  9) (text "X string number"))
  (field "loc" (position 18  4) (display_length 26) (input allowed)
    (null allowed) (max_length 26)
    (file output (link "idrange") (extension "*.str"))
    (help "00020_TIP_1"))
  (field "idrange" (position 18  5) (display_length 32) (input allowed)
    (format range) (null disallowed) (max_length 32)
    (help (field "loc")))
  (field "yrange" (position 18  6) (display_length 32) (input allowed)
    (format range) (null disallowed) (max_length 32)
    (help "00020_TIP_2"))
  (field "xrange" (position 18  7) (display_length 32) (input allowed)
    (format range) (null disallowed) (max_length 32)
    (help "00020_TIP_3"))
  (field "iystr" (position 18  8) (display_length  5) (input allowed)
    (low_bound 1) (high_bound 32000)
    (format integer_4) (null disallowed) (max_length 5)
    (help "00020_TIP_4"))
  (field "ixstr"
    (position 18  9) (display_length  5) (input allowed)
    (low_bound 1) (high_bound 32000)
    (format integer_4) (null disallowed) (max_length 5)
    (help "00020_TIP_5"))
  (default_buttons)
)