The menu right below the header is usually for the pages and the menu below the pages is for the categories. Setting the menus can be confusing though.
Quote:
Dashboard > Appearance > Menus
On the top there is an option to create seperate menus where you can add all your pages and categories.
That’s how I have managed it:
https://cdn.anonfiles.com/1415011344545.png
On the bottom you can choose where you want the pages and categories within that specific menu to be displayed.
https://cdn.anonfiles.com/1415011488844.png
When you created the menus you need to add the pages or categories to it and then choose where you want them to be displayed.