(form "00237" (size 48  9)
  (heading "RECALL A VARIOGRAM MODEL")
  (label (position  2  3) (text "Location"))
  (label (position  2  4) (text "Id Number"))
  (label (position  2  5) (text "Direction #"))
  (label (position  2  6) (text "Model type"))
  (label (position  2  7) (text "SPH or EXP or NSP"))
  (field "loc" (position 12  3) (display_length 26) (input allowed)
    (null allowed) (max_length 26)
    (file (link "rid") (extension "*.pr*")))
  (field "rid" (position 12  4) (display_length 16) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16))
  (field "ndir_vg" (position 12  5) (display_length  2) (input allowed)
    (low_bound 1) (high_bound 9)
    (format integer_4) (null disallowed) (max_length 2))
  (field "model" (position 12  6) (display_length  3) (input allowed)
    (value_in "SPH" "EXP" "NSP")
    (translate upper) (null allowed) (max_length 3))
  (default_buttons)
)