(form "20180" (size 45  8)
  (help "20180_TIP_1")
  (heading "EDIT ATTRIBUTE")
  (label (position  2  3) (text "Attribute Name"))
  (label (position  2  5) (text "Background value"))
  (field "att_name" (position 22  3) (display_length 20) (input allowed)
    (max_length "BM_MAX_ATT_NAME_LEN") (translate lower)
    (null disallowed))
  (field "bg_value" (position 22  5) (display_length 20) (input disallowed)
    (null allowed) (max_length 20)
    (decimals 3)
  )
  (default_buttons)
)