This feature allows you to "clone" your event, duplicating all information that you input during the creation process, but erasing the specific sales and stats. This is useful for creating repeat or multiple similar events.
To find this function, go to your Manage Events page and scroll down to the event you want to copy (you might have to navigate to the 'Past Events' tab if the event has already happened).
You will see a gearbox in the top right-hand corner of the event box.
Select the bottom button that reads clone and the system will automatically populate a new event page with the same exact information from the current event. Make the necessary changes (time, date, location, etc.). Save your new event and you're done!