; memorizes the current zoom window in a static variable
set stored_zoom := ($ZOOM_1D[1];$ZOOM_1D[2];$ZOOM_2D[1];$ZOOM_2D[2];$ZOOM_2D[3];$ZOOM_2D[4];$ZOOM_3D[1];$ZOOM_3D[2];$ZOOM_3D[3];$ZOOM_3D[4];$ZOOM_3D[5];$ZOOM_3D[6])


