Macro Syntax:                     X mode;


            The X command is used to toggle on and off the center mode for ellipses, rectangles and gradients (with defined width and height). If the mode value is 0 (zero) then the center mode is OFF. The named shapes will use the pen position as the top left corner. If the mode value is 1 then the center mode is ON . The named shapes (ellipse, rectangle, gradient) will use the pen position as the center of the object.