See also:

Navigation bar overview
With navigation system: the functions of the navigation bar symbols can also be stored on the programmable memory buttons. They are stored. ...

Navigation bar overview
The functions of the navigation bar symbols can also be stored on the programmable memory buttons ...

Switching on/off manually
Switching on/off manually Press the button. ▷ On: the LED lights up. ▷ Off: the LED goes out. ...