(form "00620" (size 44  7)
  (heading "RECALL PLOT FILE")
  (label (position  2  3) (text "Plot File"))
  (label (position  2  4) (text "Action"))
  (field "plot_file_name" (position 15  3) (display_length  20)
    (max_length 40) (input allowed) (translate lower)
    (file input (extension "*.dwf,*.pf,*.cf"))
    )
  (field "append_option" (position 14  4) (display_length 8) (input allowed)
    (default "replace")
    (value_in non_exclusive "append (simple)" "append (advanced)" "replace" "new viewport")
    (translate lower) (null disallowed) (max_length 20)
    )
  (default_buttons)
)
