If you own a CNC mil ling machine) or isolation-milling that have HPGL created for them are included.
The software construction of sprint layout is made self-explanatory with the free viewer-software for Sprint-Layout, everybody can view or print your designs.
Two layers exist (Copper and silkscreen) for each side of the board. You have the option to use an outline layer for the board contour or two additional inner layers for multilayer boards. Extra features are solder masks, SMD masks, automatic ground planes, signal flow tests.