Hello, @David,
Here are the videos for a better reference to understand the headers and menus.
1, Create Menu: https://www.youtube.com/watch?v=OnxkixHtVLI&list=PLMqMSqDgPNmCCyem_z9l2ZJ1owQUaFCE3&index=7
2, Multiple Headers: https://www.youtube.com/watch?v=BpeXfzNwkOc&t=10s
3, Default Header and Header builder: https://www.youtube.com/watch?v=RbdKjQrFnO4
Regards 8Themes Team.
