Hi @jonathant
Thanks for your answer!
But it won’t work. I can indeed detach the header from the master.
But when opening the hamburger menu the container is still detached to the master. And there is no option in the menu to detach the container on that page. So when alter the menu it will apply on all pages.
When I create a second hamburger menu on the page, as @info87066 suggest,
the same thing happens. The hamburger will open the same container.
I can place a vertical or horizontal menu on the page that’s no solution to my problem. So it has to do something with the mobile hamburger menu.