> For the complete documentation index, see [llms.txt](https://elessi-docs.nasatheme.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://elessi-docs.nasatheme.com/header-and-menu/menus/config-mega-menu/how-to-set-up-mega-menu-vertical.md).
# How to set up Mega menu vertical
### Here is the instruction you can follow if you desire to set up a menu vertical for your site:
**Step 1** - Simply, navigate to **Appearance** **→** **Menu**
**Step 2** - Create a new menu that you want to use do the **vertical menu** and click Select button
**Step 3** - On the right, feel free to drag and drop menu items to organize them
**Step 4** – When you are done moving menu items, check a menu location at the bottom of the page and click **Save Menu**
{% hint style="warning" %}
**NOTE:** The vertical menu only works to **Header Layout 4** and **Header Layout 6**, to set up the vertical menu please follow these steps:
{% endhint %}
Go to **Appearance** **→ Theme Options → Header and Footer**
#### **Elessi**** theme is designed by default with 3 levels of sub-menu, if you want to display sub-menu with 4 levels , please insert the following code in / wp-content / themes / elessi-theme-child / functions .php:**
{% tabs %}
{% tab title="PHP" %}
{% code title="function" %}
```php
add_filter('nasa_max_depth_vertical_menu','custom_max_depth_menu');
function custom_max_depth_menu($depth) {
return 4; // Return max depth menu – Default is 3
}
/* ===================== */
```
{% endcode %}
{% endtab %}
{% endtabs %}
### RESULT
