Cloning (copying) a site is a useful tool for making changes to your site without risking any permanent loss of your original site's material.
To make an exact copy of an entire website, select a website you have created in the "My Websites" listing, and click on the "Clone" button. This will create a copy of your site with the name "Copy of" added before the original website's name. For example, if your site was called "My Website", then the cloned site will be called "Copy of My Website". You can rename this website in Step 1: Define your site.
Now that you have successfully created a clone of one of your websites, you can edit and modify it just as you would any other website, without any risk of losing your original website's content or design scheme. Unless you modify the publishing location in Step 1 for this site, publishing your cloned site will overwrite your original website; however, since the original website is still listed in "My Websites", re-publishing the original site will restore your content. This allows you to publish your updated website, and if necessary, revert your published website to its previous format.