Here you can general application behaviour.
Startup and exit
Open last active map on startup - select this option if you want Navigator to open the map on startup at the same point at which you exited.
Save map appearance on exit - select this option if you have changed map appearance and want to keep them for future Navigator use.
Save user objects on exit - select this option if you want to keep any pushpins, you added to map, for future Navigator use.
Unit system
Toggles the use of metric (kilometres, metres and litres) or imperial units (miles, yards and gallons). This is of particular interest when measuring map distances or areas and routing.
Input dialogs
From this list you can control which tabs appear on the input pane.