The slider along the center of the left edge changes the zoom level for the circle. If you have up/down buttons or a thumb wheel, they may also drive the zoom. It defaults to 8 miles radius (16 miles across). Plus will increase the viewable range (zoom out - show more) and minus will decrease the viewable range (zoom in - show fewer). The icons will automatically shrink if you zoom out really far. Double-clicking in this bar will go to that zoom setting immediately.
page revision: 0, last edited: 10 Jun 2011 02:35