Dolphin file structure has changed in recent years... current Mario Galaxy 2 controller config?

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So I played Mario Galaxy 1 with Dolphin and a controller years ago and had a great experience; now I'm done waiting for 2 to turn up on Switch, so I want to do the same with 2. But all of the tutorials online are outdated, Dolphin's backend file structure has changed. Can anyone advise how to set up a controller with right stick controlling the IR (that disappears after a few seconds) in 2022?

 

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Anyone know?