GGU-CAD: "Zoom factor" menu item

After going to this menu item a new default zoom factor for the screen presentation can be selected. The location of the origin is not influenced. The appearance of the drawing on an output device (plotter, printer, etc.) is not affected. A zoom factor of 1.0 corresponds approximately to A3 format. Pressing [Esc] always facilitates a complete screen presentation using the zoom factor specified in this menu item.