Amplifier with supply voltage

Hi,

I want to create an amplifier with supply voltage in SimRF enviroment. I want to change the supply voltage of the amplifier during operation in my problem.

Is there any such block already made? Any idea how could create it?

Now i am trying with SimElectronics on pysical level with a mosfet transistor but there i can not get S parameters, smith chart, gain plots and use the RF toolbox.

Thank you for your help!

Best Regards,

Janez