View options
              3D  - Terrain model shaded for height
              Phy - Shows terrain type from OSM
              Pan - Panorama display 
              3D  - Terrain model colour coded for height
              Fog
                Truncates the view to a distance, like fog
              Go to
                Navigate to a named hill
                
              GPS
                Show view from GPS position
                Birdseye View
                Toggle between regular and birdseye views