HFSS parametric 4 port component.

I performed a parametric analysis on frequency domain by hfss to get S parameter data on 4 port system. Then to do a transient analysis on Nexxim I converted the s parameter data to s4p to utilize it as a circuit compoment, but found out that it doesn't include any parameteric analysis data, just including result on nominal value through frequency sweep. Is there any way to include parametric data?