Parametric analysis in AMS simulator

Hello,

I am trying to run a DC parametric analysis using the AMS simulator, but it does not give me any results.

I have realized that the 'DC analysis' in AMS simulator is only possible saving the DC operating point, which does not give me the chance to run a parametric analysis (once it does not save me any parameter value).

I still have tried to run a 'tran analysis' which gave me only the gate voltage as a plot result. The drain current was not plotted because of the following message error:

"ERROR (WIA-1006): Unable to plot expression <IT("/TN1/D" "/sim/ronaldomponte/testbench/ams/config")> because it does not evaluate to an object that can be plotted, like a waveform or parametric wave. See the Visualization & Analysis Tool documentation for information

about the types of objects that can be plotted in Visualization & Analysis Tool. Only the expressions that evaluate to those objects can be plotted."

A result search on Google have suggested an OCEAN script to solve it.

Is there another way to solve this problem? 

Can anyone help me how could I perform an DC parametric analysis running AMS simulator?

Thanks in advance.