At first sight, a replace doesn't seem possible.
Is the current footer one you created yourself? If so, an option would be to remove the content and replace it by referencing the new footer. That way, you won't have to change it on every page I think.
Is the current footer one you created yourself? If so, an option would be to remove the content and replace it by referencing the new footer. That way, you won't have to change it on every page I think.
