Let's see if I can explain. wasd are the keys you would use to move the point of view around the plane. Press c to switch back and forth between mode where you are just looking and can control the plane. Same thing, r will go up, f will go down. Then you can use the arrow keys to point the camera in the direction you want.
When you press F12, I believe it takes a screenshot but just to memory, then you have to past it somewhere and save.