Just looked this plane up and saw that it has 360º vectoring. And the right/left is mixed with the rudder, which you do not have on the vertical stab's. So vectoring is the only way to get rudder.
There should be two servos controlling the thrust vectoring. The rudder you can just simply put in the rudder port on the Rx. The elevator, as Smoggie stated above is going to be a mix between the elevator and whatever channel you have the other servo plugged into. So if you have the elevator and Aux1, then you will create a mix with those two channels in the Mix menu. From there, you can set just how much throw it will have and I would keep it light to start with. And I believe you can set a switch in there as well to turn it off as that little short guy did in his video lol.