All features are available in the trial version. In other words, the trial version behaves exactly the way the registered version will work.
As a matter of fact, we DO NOT have 2 download packages, one for the trial version and one for the registered version. Just the one you download from our download page and that you unlock with a registered number.
You won't lose anything that you already created with the add-on, once you are done evaluating the program and register it. So you can invest as much time as you want evaluating the add-on, your work won't be lost.