Transformer and Mutual Coupling

Dear All, 

I want to use a transformer in both cadence spectre and virtuoso,

My used Technology does not have its own Transformer.

How I can Activate the mutual coupling between two Technologu's spiral Inductors in schematic and layout as well.

is this possible ?

or I have to build my own transformer using another EM-simulator and then importing its S-parameter block to the cadence environment.

Regards