Hello, I am trying to follow along with a basic flow simulation tutorial (3:20 mark, link below). However, when I try to add a material, there is nothing in our material list. Is there not a library of materials already created?

Thanks!

https://www.youtube.com/watch?v=WwjCF_gl4yw&list=PLe0EJN9Fts8tqRm1JE0QtShqaE7VvoTnp&index=34