(form "BlastCrestTolerance" (size 50  5)
  (help "")
  (heading "Blast Crest Tolerance")
  (label (position 10  3) (text "Tolerance"))
  (field "tolerance" (position 25  3) (display_length  5) (input allowed)
    (low_bound 1) (high_bound 32000)
    (format real_8) (null disallowed) (max_length 5)
    (help ""))
  (default_buttons)
)