Switching paddles with and without multi-funtion steering wheel and functions

Hello, I take the following pictures, that the type of shift paddles changes if you can install the multifunction steering wheel. without multifunction steering wheel:http://files.porsche.com/…/normal.jpg?… with multifunction steering wheel:http://files.porsche.com/…/normal.jpg?… Can anyone give me an assessment, which of the swings are probably better to use? Without having done a test drive, I see that the swings are bigger and easier to hit without Mufu, one can either With Mufu, on the other hand, the seesaws are slightly smaller, but can be switched up and down on both sides. In addition, which functions can be operated with the steering wheel? Of course: Accept and hang up the phone, probably change volume (what happens when you press this roller? Is directly muted?), scroll through menus or tracks and switch back a level. But for example, what is the middle button on d He left side? Greetings