To increase your altitude BEFORE you've taken off, press Y then F4. When you want to stop going up, press Y again.

Anytime during the game press "y". You will stop and so will everything. On the top it will say "slew." Then press either F2 to go forward or back and F1 to stop. Or press F4 to go up or downand F3 to stop. Also when you are in "slew" mode you can the can go forward, back, right left using the arrow keys on the keyboard or the joystick. When you are done press "y" again.

Here's how to change your view:

Pan up      shift-backspace
Pan down    shift-enter
Pan right   ctrl-shift-enter
Pan left    ctrl-shift-backspace

All you do is press (Y) snd then press F4 to do up,F1 to go down and F2 to hover. To go forward press what ever is forward and press left to go left and so on and so on. To turn just press back and the opposite way you want to turn. Once your done lining your self up just press (Y) again and fly like normal.