See also:

Backrest width
Change the width of the backrest using the side wings to adjust the lateral support. To make it easier to enter and exit the vehicle, the backrest width temporarily opens fully. ...

Useful short commands
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Editing a contact
1. "My contacts" 2. Select the desired contact. 3. "Edit contact" Edit contact 4. Change the entries. 5. Move the controller to the left. 6. "Yes" ...