(form "00909" (size 62  8)
  (help "00909_TIP_0")
  (heading "SELECT MODEL") 
  (label (position  2  3) (text "Master model name"))
  (label (position  2  5) (text "Output model file"))

  (field "modname" (position 20  3) (display_length 40) (input allowed)
    (translate lower) (null disallowed) (max_length 40)
    (file (extension "*.mdl"))
    (help "00909_TIP_1")
  )
  (field "out_file" (position 20  5) (display_length 40) (input allowed)
    (translate lower) (null allowed) (max_length 40)
    (file output (extension "*.mdl"))
    (help "00909_TIP_2")
  )
  (default_buttons)
)