further more, left and right sticks of controller are two 2D sticks, which means each contains X and Y data.
Your Logitech Extreme Pro 3D is a 3D stick, it has X, Y, Z.
We have assigned X and Y of controller's left stick and another X of controller's right stick to Extreme Pro 3D.
So the Y data of the right stick on controller can not be represented by the flight stick.
If you really want to do it, you may try to map the Y data of the right stick to two extra buttons
on the flight stick(Extreme Pro 3D).