You don't need to know anything about shader nodes to use the free P5/P6 materials from RDNA. It's as simple as using MAT poses from the Pose folder. Just select your material zone, click the icon, and voila! ... material applied. Of course, you won't really see it until you render, but trust me, those satin, latex, suede, and velvet textures at RDNA are well worth experimenting with. The suede ones can in some cases be used to suggest velvet. My real point, Acadia, is give it a try sometime; don't let yourself be intimidated by all that tech-y Material Room stuff. It's only as complex as you want it to be. If you want to simply apply shader textures like you do image file textures, you can. :-)