The input options are rounded off by shortcut keys in front of the controller for frequently accessed operating tasks, and by the optional control array for the driving assistance systems above the rotary light switch. (auto.ndtv.com)
The «R» and «C» buttons in front of the controller are used to exit submenus quickly or delete entries. (topspeed.com)
Plus, if you need to increase the pressure, there's a manual override control right on the front of the controller. (geekwrapped.com)