Need to learn UNA on test server but can't setup without license

I was just hired on by a nonprofit which has one license and has been talking to Mark about buying another. I am tasked with learning the configuration and management but can't do much of anything because it tells me I need a license to configure many of the basic things such as smtp or to see modules on the App Market.

Is there a trial key available so I can learn the software, or do I need to wait until we have the second license?

Any advice of ideas are appreciated

Thanks