Gunner Sight/Bomber Sight Using Hotas

I can’t figure out a way to move the crosshair in my Gunner Sight (Helicopter) Bomber Sight (Plane) without using my mouse while using a HOTAS. I have a joystick on the back of my throttle that I would like to move the crosshair with I tried binding anything to due with x and y axis and cant figure it out does anyone know how to fix this?