Interstage matching in Cadence Virtuoso

Hello,

I am trying to create a multistage amplifier operating around 200 GHz in Cadence Virtuoso. Could someone tell me how I can measure the impedances at intermediate nodes? I need this so that I can do conjugate matching between stages.

In the past, I have designed amplifiers using ADS. I used 'SP probe' between the stages to measure impedances. Is there something similar in Cadence Virtuoso?

I read something about 'sprobe' in cadence forums. I think I need to use that block. But unfortunately, I could not find it in my analogLib. Has it been added recently? Or am I missing something? (I'm using IC617) 

Thanks.