You can try adding the plutonium.exe to Steam and then going to big picture mode. In big picture mode you can manage shortcut and select controller configuration. I haven't tried it, but if you are able to browse community inputs then you can select one that someone else made and the controller will work from there. You'd just have to launch from Steam rather than wherever the plutonium.exe is.
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PsycloneSE
@PsycloneSE