The Zoom Out tool is only available when the Municipal Boundary is displayed. By selecting this tool, then clicking on the map, the viewable area of the map can be increased.
To increase the viewable area of the map:
The map view will be centered on the point that you click, and the viewable area will be increased. To decrease the viewable area of the map, use the Zoom In tool.
If you are using the pan or select tool, you may use the mouse wheel to zoom in and zoom out.