Enricong.
Heres the link to the Falcon 3D equipped with the CPD4 Co Pilot. I dont know if the CPD4 will work with the Walkera 36. If its a mechanical mixed Collective Pitch, it will work with it. Goes between your receiver and Cyclic Right Stick servos. Check out my crummy video. You will see it works pretty good with beginner at the controls.
Ralph
http://youtube.com/watch?v=vAnByGX31ko