(form "00239" (size 53  7)
  (help "00239_TIP_0")
  (heading "RENUMBER A STRING")
  (label (position  2  3) (text "Layer name"))
  (label (position  2  4) (text "Renumber string"))
  (label (position  8  5) (text "to string"))
  (field "swa_name" (position 14  3) (display_length 32) (input disallowed))
  (field "istr" (position 18  4) (display_length  5) (input disallowed))
  (field "new_str" (position 18  5) (display_length  5) (input allowed)
    (low_bound 1) (high_bound 32000)
    (format integer_4) (null disallowed) (max_length 5)
    (help "00239_TIP_1"))
  (default_buttons)
)