The tool bar is normally located just below the menu bar but can be moved (using the mouse) to other positions. The toolbar is devided into three groups. The two leftmost groups provides quick access to some of the most frequently used menu items. The rightmost group contains editing tools.
The first group contains (from left to right in its default placement) the following tools: New system, File open, and Save System As (described in the File menu section).
The tools in the second group are Zoom to Fit, Zoom In, and Zoom Out (described in the View menu section).
The third (rightmost) group of tools are described in the section Drawing.