RF Jitter, parametric sweep in ADE L

Hello, 

First post on the Cadence forums here. I'm curious if it is possible to plot RF Jitter as a result of a changing parameter (using the parametric sweep function)

I have the following expression in the "outputs" section of ADE L:

rfJitter(?result "pnoise_sample_pm0" ?unit "Second" ?from 5 ?to 2000000 ?signalLevel "rms")

However when I do a parametric sweep, I get nothing for this output. 

Also is there any way to sweep parameter "m", the number of parallelized transistors? 

Thanks.