Initial Setup

You will soon realize these programs were not written to be easily understood. You may have already tried to find the answer only to find yourself 5 pages deep and asking yourself "what the hell was I looking for ?". If you're not to deep in a project I would say get out while you can otherwise you will find yourself loosing months of your life searching for elusive answers that always appear to seem to be just around the corner.

More directly to your question you need to know the trial version is a far more robust version of sign than the individual package. Go back to the Sign promo page that describes the program. At the bottom of the page you'll see a link "Compare Programs", or something like that. That is where you will discover what sign features are included in the program you purchased. For example I have been trying to create forms with calculations for a long time only to learn that the sign version included with creative cloud for teams is an individual version of sign and doesn't include calculation functionality when sending forms for signature.

I will admit that I have limited skills with this software, but believe me when I say Adobe is not user friendly for folks with limited skills.