The visualization area covers the biggest part of the main window. Here, your network, vehicles and other data will be visualized.
Which data is visualized is controlled by the Layers Control. You can navigate in the visualization area by clicking and dragging the area with your mouse while the corresponding functionality is activated in the toolbar. When some other query tool is activated, use the middle mouse button to drag the visualization area, or switch back to the regular mouse functionality by clicking on in the toolbar. To zoom in or out, you can either use the corresponding buttons in the toolbar, or use the scroll wheel on your mouse.