Reference Manual
Page 13
... start in 2D (3D) mode depending on screen Continuously updates the map so that the whole route is displayed Keep GPS position on your favorite locations on the map. Borders Sets the level of the Navigator status bar. Automatically zooms in and out in Navigator view 2D (3D) automatic zooming Flashes a warning icon.... Show 'no external power source is present. Flashes a warning icon if you to planned route Redraws the map after a route has been planned, in the Navigator view.
... start in 2D (3D) mode depending on screen Continuously updates the map so that the whole route is displayed Keep GPS position on your favorite locations on the map. Borders Sets the level of the Navigator status bar. Automatically zooms in and out in Navigator view 2D (3D) automatic zooming Flashes a warning icon.... Show 'no external power source is present. Flashes a warning icon if you to planned route Redraws the map after a route has been planned, in the Navigator view.