magnetic core libraries with Cadence Virtuoso

I'm using Cadence Virtuoso to develop a flyback converter with trasformer. The program shows me the "winding" and the "core" components, but CORE asks me to specify the model neme. I have NO core models on my machine.
Can someone help me to find one?

Then I will modify only the "Jiles - Atherton" parameters not creating a new model from zero.

Thanks from now for the help.