substrate layer of inductor

Hello, I have build an inductor as shown bellow, there are  two layers layer 9 and layer 8  with a VIA connecting between them.

 There are 3 layers where a substrate could be define.under layer 9, between layer 9 and layer 8 and above layer 8.

The only option i have is to load a file , but can i define it manualy some how?

Thanks