Think it was always scroll wheel, just Hairyman (and probably others) weren't aware. My personal view is you should be minimising use of the touchscreen while driving. So right scroll wheel for following distance. Double right stalk down for setting AP to current speed limit Left stalk end button for wipers Voice for glovebox or changing aircon settings. My only real use of the screen would be to check for software updates , switch Spotify albums and if I'm tight on range and monitoring energy charts.