Add Menu

That is my theme 🙂

You can add a menu to the sidebar via the widgets page in your admin panel.

If you want to add a horizontal menu, then that will require significant changes to the theme. I never designed it with the intention of having a horizontal menu and I’m not sure that adding one to it retrospectively is a good idea. If you desperately need a horizontal menu, then I think looking for a different theme would be your best option.

If you definitely want to add a horizontal menu to the Hellish Simplicity theme, then you will need to register a new menu, then add it via wp_nav_menu() in the header.php file, then add the required CSS. I can’t really teach how to do all that in a single forum thread though, as there’s a lot to learn. I’m not even sure how you would design the menu though. I think it would look a little odd if you just shoved a menu into the header randomly.