Fist: keep in mind that you’re responding to a thread which is 7 years old. It’s not a problem, don’t pick up my message in the wrong way, but the reason I mention this is because a lot of things can (and will) have changed over the years. Visual Paradigm is a rather “dynamic” application (meaning: it’s constantly being developed and improved).
Now, my VP version doesn’t support these features, but I looked them up for you. I think you’re specifically referring to the Advanced Model Management toolset, these provide tools such as the Extractor and Transistor. Features which are supported by the Standard license and up.
All these features are explained in the Visual Paradigm user guide, also accessible online as you can see. I believe that the section you’re looking for is: XI Advanced modeling toolset; this explains the model transistor which was mentioned above.
I hope this can help you.