INSPECT_3D

        [DISPLAY\]INSPECT_3D [Argument [FirstPlane [LastPlane]]]
      [/DIRECTORY NameTree]

    where
    Argument
        is the the name of a 3-D internal  buffer  to  be  plotted  (BEAM,  CCT,
    CLEAN,  DIRTY,  FIELDS,  MASK, etc.. ), or any Sic Image variable, or a file
    name.  If not present, Argument falls back to the last argument used in  EX-
    PLORE, INSPECT_3D, SHOW, or VIEW commands.

    Simultaneously  display  cuts along each of main cube directions, as well as
    the current spectrum. Coordinates are controlled by the cursor  position  in
    the plots.