People here are making it far too complicated. Download the .3mf, which has all of those things broken out. Load that into Bambu Studio, selecting “Geometry Only”. Change your view to Objects and you’ll see all of those parts broken out into distinct objects where you can choose which ones to add Fuzzy Skin to (and also change the parameters.) The only problem is that they are not clearly labeled, so click on each one and it will be highlighted in the view.
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