May I have an idea of how do I implement it? I'm very beginner on WP and PHP, that's the challenge! I'd like to know how may I implement those changes, but not directly to the "CORE" of WP or even the core of Woocommerce plug-in (if it's that way I'm imagining that it works in general, by the way). In order to, when it had an update, my code wouldn't be overrided (reset) by the new updated version of the plug-in/wordpress.