Hide Online County Polygons
This command will temporarily hide any existing county polygons currently showing in the Online Map tab-page. The command name will also change to 'Show Online County Polygons', indicating that this is a non-permanent command, and that clicking 'Show Online County Polygons' will make them reappear. If you wish to delete the existing county polygons permanently, you should use the 'Clear Online County Polygons' option.