We all like a sneak peak to make sure everything looks good. To preview your event, simply activate it, head to your ticketing site, and grab the event's url. Once you have the URL, make the event inactive. You will be able to check any changes you make by simply going to that URL. Just make sure that your ticket sales dates match your intended dates.
Tip: This is also how you have the option to do a private event. You can hand out this URL and even if your event is not active, consumers could go take a look at tickets.