Not totally sure I understand here so I'll give a few versions of my answer. In terms of data, you can run on one machine and save the data to another. In terms of running the sessions, yes, MediaLab must be installed on any machine where the session is being run. And in terms of moving MediaLab to another machine, normally licenses are purchased for each machine. But that said, if you need to move an installation from one machine to another for whatever reason it's not a problem. Just send an email to our sales@ address.