Xpadder (paid version) , X Carve and XBox Controller- Z axis mapping issue on X box Controller

Hi folks,
I ran into a small wall wile setting up the keys on the xbox controller. want to ask for your assistance. I was able to map the x and y axis on the remote. The Z axis mapping is stumping me. I did it once but in trying to better customize the remote, I deleted the z axis.
Any suggestions. I also plan to add the autohot keys utility to help me navigate the setup.