[Arhowk]

. . . Yes?
If you're using a non-classmate, than just drag the dashboard to the other screen.

If you're using a classmate you have to do it in developer mode.

Keep in mind a second monitor may be extremely inconvenient on the operator console.

As to your second question I don't know what you're referring to. If you mean diagnol than it would just be adding the left and right wheels together (though some trig may have to be used to fix the length of the triangle formed by the wheels)