(form "AvgCutOffs" (size 75 11)
   (heading "Select Grade and Tonne Attributes")
  (field "cutoff_name" (position 1 0) (display_length 5) (input allowed)
    (max_length "BM_MAX_ATT_NAME_LEN") (null disallowed))
  (scroll_block "kriging" (position 5 4) (size 65 5)
     (extra 0 1)
     (scroll_size 80 100)
     (repeat interactive (grow 0 1) (instances 1 (min 1) (max 100)))
    (top    
      )
    (main
      (field "avg_attr" (position 15 0) 
        (display_length 7) 
        (input allowed)
        (max_length "BM_MAX_ATT_NAME_LEN")
        (null disallowed) )
      (field "attr_tons" (position 26 0) 
        (display_length 7) 
        (input allowed)
        (max_length "BM_MAX_ATT_NAME_LEN")
        (null disallowed) )
      (field "cutoff" (position 26 0) 
        (display_length 7) 
        (input allowed)
        (max_length 30)
        (null disallowed) )
    )
  )
  (default_buttons)
)