Perhaps you have created an awesome product lists and you want to use it in another project as well. But, although you need to make a few changes/ additions at the new list, you need at the same time to keep the first list unbroken/ intact.
Well, you can easily do that using the clone button.
While you are at your Lists page, click on the orange button that is shown at the right top of the list you want to clone.
Type a new name or leave the default name and save.
The new list will be added to your product lists.
Now you can edit it as usual and use it to your blog.
If the list you've just created is pretty awesome and you will definitely need it to a next project, clone it and set the clone as a template. Now you can continue creating your next list from there on.