Use the / key (the one with the Question mark) to deploy the spoilers, and press Shift + / to arm the autospoilers, which will engage when you hit the ground.
Another thing, with the pushback, if you press Shift + P, followed by 1 or 2, it will turn the nose 90 degrees left or right, depending on the perspective. If you are looking from the front of the plane to the back, 1 will turn the tail right, and two will turn the tail left. Obviously, if you are sitting in the cockpit looking forward, 1 will turn the tail to the left (the easy way to remember is 1 is left of 2), and two will turn the tail right. If you don't want to go the whole 90 degrees, just press Shift P once to stop it, and press it again to keep moving straight. For example: if you wanted to turn the tail right (looking forward) 45 degrees, you would press Shift + P, followed by 2 (not the two on the number pad, but rather above the letter keys), until it gets to your desired angle, then press Shift P again to stop moving, then again immediately to start moving on the line you are on. If you do it quickly, you won't even stop moving.
Hope this helps!