Press the wiper button on Steering wheel to wipe, use left scroll button on steering wheel to make it fast/slow/off. No touch screen needed. Can also use voice command.

Press headlight button on s.wheel, tap the fog light icon on screen.

There's one thing I actually dislike. You can use voice to control all these stuff except foglight. It even understands foglight command, but doesn't do anything. Most likely a bug. I don't know how to report it.