Copy acampaign

From the campaigns page, find and click on the Copy Campaign button. 

Next you would name your new campaign, create a new URL, and select the new event start date. Then you would select from the dropdown the name of the original campaign that you would like to copy. 

Then to finish, click the Add Campaign button, and voila! You have a new duplicated campaign!  You can make changes to this new campaign and it will not in any way effect the original.