It's not a problem to have the elevators move in different directions during the teach portion. Once you go through the mounting position teach and the end points teach, you'll see the elevators move correctly when testing the gyro.
You mentioned that you can't see the elevators moving after teaching them. My recommendation is to set your gain channel to +100, 0, -100, then set the gains on the gyro to 100% AND turn on attitude assist. This will allow you to move the airplane around and check if the movements are correct. Once you confirm everything is moving correctly, then back off the gains and remove attitude assist where necessary.