VRay for Sketchup Studio

I am trying to set up and use V Ray for SketchUp Studio and I don’t have any materials showing up. the Material library only has maps so nothing shows up in vray.

Do I need to create a separate account from my Trimble account for Cosmos?

No, but you need to click the cosmos button in v-ray to get to cosmos - there are no built in materials in this area anymore

I’ve found some info on this new way. i used v-ray a few years ago, before Cosmos.
So i can’t use my old material Library and have it show up in the material panel?

are there any books, PDF, that can give me a in-depth explanation of how this new system works, not just the over view?