Duplicate a tournament
To duplicate one of your tournaments, get to the "Settings" of your tournament, and click on "Duplicate" in the lower-right corner, by the other Global Actions.
You will then be prompted with a menu asking you to select which features of your current tournament you wish to duplicate into the next one, and give your new tournament a new name:
Once you validate, you will automatically move to your newly-created tournament! As of now, you can not duplicate the Structure of a tournament, but that will be possible soon!