BEAM

          VIEW BEAM [PLANE|FIELD Kn]

    View some sub-cube of the (up to 4-D) dirty Beam.

    The  2nd argument indicates whether VIEW shows dirty beams of all Fields for
    a given frequency plane (PLANE keyword), or  all  Frequency-dependent  beams
    for a given Field.

    The 2nd and 3rd arguments are optional if the beam is only 2-D or 3-D, which
    occurs for a single field or a frequency-independent beam in Mosaics (narrow
    band approximation).