I am trying to merge my header with my content, but when I am creating the element it only gives the option to merge or merge on desktop only. I need to merge it on mobile only.
Right now it’s not possible without custom CSS, unfortunately. I don’t think it’s actually been requested before, but I’ll look into how easy it would be to implement with the current code.
Right now it looks like the only thing making it not merged on mobile is the background being set to white. Since you’re using Elementor to build the header, GP isn’t able to force it to be transparent.
If you can edit the mobile header in Elementor to use a transparent background, it should work.