Accessing Material Library in Rhino 7 for Mac

I am trying to access the material library, and it looks like I don’t have it installed. In other words when I click “More Types” at the bottom of the pop up, see image, I can’t find the rest of the material types. How can I have download and install it?

The place you are clicking is for setting the type of the current material, not for accessing the material library.

For that go to the materials panel on the right


press the big + icon

then select Import from Material Library…

Thanks, that was very helpful. I can access it now.
However on all YouTube videos, including published by Rhino, the instructors are showing the steps that I was following. Is there a way to point to that material folder that you showed by going the way I was trying?