20.7.11 REMOVE

[ADVANCED\]MASK REMOVE Shape [Arguments ...]

Remove the specified Shape from the current Mask. Shape can be

   CIRCLE      Ox Oy Diameter
   ELLIPSE     Ox Oy Major Minor Angle
   RECTANGLE   Ox Oy Major Minor Angle
   POLYGON     File
where Ox Oy are the center of the shapes, Major and Minor the axes length (= side lengths for the Rectangle...) and Angle the Position Angle of the Major axis.

For the POLYGON, the GreG polygon read from the specified File (note that this overrides any previous definition of this polygon).