In your header, the Main menu is the main navigation option for your product collections and is essential for all storefronts. You also have the option to add menus to your footer and navigation menu by selecting them within the section editor.
In order to add a menu to your theme, this menu first needs to exist within your Shopify admin settings:
- Within your Shopify admin, go to Sales Channels > Online Store.
- Go to Navigation.
- Select Add menu.