SUPPORT

        [CLEAN\]SUPPORT [Polygon] [/CURSOR] [/MASK] [/PLOT] [/RESET] [/VARIABLE]

    Define  and/or plot the support inside which to search for CLEAN components.
    The support can be defined through a mask (see /MASK option) or  a  polygon,
    depending  on  the  selected  options.  The /PLOT option can then be used to
    plot it.

    A polygon stored in a file, or in a Sic variable (/VARIABLE option), can  be
    loaded as the polygon support.

    See  also  the  [ADVANCED\]MASK  command for a complementary way of defining
    supports, in particular 3-D supports.