After starting Graph'O->Mat you can see an empty window with a button bar on top and a status bar on the bottom. All functions are available in the menu and the most useful of them have a button to reach it faster and easier. The statusbar tells you in which mode you're actually working and what Graph'O->Mat is doing right now. The basic status is for moving vertices around and is automatically set after starting Graph'O->Mat. The rest of the window is still gray, but will hopefully soon be filled with vertices and edges. You can open different windows in which you can have a graph each. These graphs can also be optimized in parallel.
In this section we cycle through the menus in the way they appear in the program. Sometimes there are references to other section where you' ll find a logic connection to your present subject.