In the material room simple tab if I click on "Create Simple Material" I get some boxes where I can enter details of the material. But if I click om "Create Advanced Material" all I get is the same boxes as before but they are all greyed out and nothing is clickable. I can't find any way to do anything in this mode. Is there something I have to to to activate this funcion?

I'm using Poser 14 in trial mode on Windows 11.