As far as I know, you could use the normal Gamepad Mapping. I have that same controller, and I found out that you need to hit the “@” and the “B” Button to enter the mode in which Unreal will react to the mapping you pointed out in the blueprints.
For example:
This makes it so the “A” button, which is considered the “Face Button Top” by unreal, which is correct if you use the Gamepad Sideways, makes my character Jump.
You could always invert the Stick, so you could use it vertically, as it’s supposed to.