In the demo version Top menu is located here:
![](https://nkdev.info/wp-content/uploads/2020/10/top-menu-1-1024x605.png)
To add or change a Top Menu, go to the Appearance → Menus
Then you can select a menu to edit or create a new menu:
![](https://nkdev.info/wp-content/uploads/2020/10/top-menu-2.png)
If the Top menu you need is not in the list, just create a new one:
![](https://nkdev.info/wp-content/uploads/2020/10/top-menu-3.png)
Then tie the new menu to the top menu area:
![](https://nkdev.info/wp-content/uploads/2020/10/top-menu-4.png)
Then you can add menu items. More details about this you can read here: https://en.support.wordpress.com/menus/