Duplicating a donation page allows you to simply and easily, copy a donation page which you have previously done.
Reasons you may want to do this:
1. Add some additional content to the page whilst keeping the original donation page as well (two slightly different pages for the same campaign)
2. Set up a completely new donation page but keep your colours and layout from the previous campaign.
To do this, once in the manage appeals section of the back-end, click on the duplicate campaign button - make sure you name the title of the campaign page a different name to what you already have in the back-end