How To Duplicate an Existing Page.
Use the Duplicate Page option to create a page that will be similar to another, and then access it to make the changes that differentiate it.
1. Click the Pages link on the top menu or the Plus + button on the page tabs bar to open the Pages & Navigation window.
2. Hover over the pages list and click the Duplicate icon. Replica of the selected page will be created automatically, and appear on the bottom of the pages list.