How can I completely edit the footer?
It all depends on the theme. Most themes will have a footer.php file somewhere, which usually contains code related to the wp_footer function. It may also be in the theme’s function.php file. It’s all dependent on the theme. You can change (add to) what happens with the wp_footer function, see here for a start https://codex.wordpress.org/Plugin_API/Action_Reference/wp_footer … Read more