(form "50118" (size 41 20)
  (heading "DESCRIPTION FIELDS DEFINITION")
   (field "master_element" (position 20  4) (display_length  3) (input allowed)
    (low_bound 1) (default "1") (high_bound 100)
    (format integer_4) (null disallowed) (max_length 3))
  (scroll_block "dfields" (position  4  4) (size 61  7)
     (extra  0  1)
     (scroll_size  155 7)
     (repeat interactive (grow  0  1) (instances  1 (min  1) (max  50)))
    (main
      (field "d_field" (position 10  7) (display_length  3) (input allowed)
        (format integer_4) (low_bound 1) (null disallowed) (high_bound 100) 
        (max_length 3))
      (field "d_name" (position 20  7) (display_length 10) (input allowed)
        (null disallowed) (max_length 10))
    )
  )
 (default_buttons)
)