extracting transistor small signal parameters in advanced tech nodes

Hi,

I used to extract the small signal parameters of transistors from dc sweep by defining in a file: save * sigtype=all. This worked and I had access to transistors' small signal parameters like gm, gds, etc.
Now, for certain advanced technology nodes of a certain fab transistors for analog design are defined as analog_cell, sort of a subcircuit. Or another possible definition is as macro model. These definitions capture more layout effects and non-idealities but doesn't give access to gm etc as before.
I was wondering if anyone knows and can help me understand how to extract the small signal transistor parameters in this case since the old approach doesn't quite work for those definitions.

Thanks