Inverting camera controls? (Not just Y-Axis)

[CrimsonFenrir]

Y'ello. Been looking for a way to invert the camera controls on gamepads completely in both of the Amnesia games. I know that there's an option for inverting the Y-axis on both the mouse and gamepad, but there's no X-axis option. I can't find any way to change this in the config files, and search engines have been of no help either. If there's a way to do this with the game console, could someone please walk me through it? I keep trying to play these games with regular controls and my brain just keeps screaming at me about it. It's just uncomfortable for me.