Thank you Rad!
So I created the global block, added a search and a navigation element inside it with the two elements inside but I can't figure out how to edit in on the header.
It shows up, but it needs to be wider... I also can't figure out how to turn the current navigation to "hamburger menus" when viewed on mobile.
Currently, when viewed on mobile, the "right" hand side menu remains visible, the global block shows up, but the left menu hides.
Thanks for the help! Going crazy here hahaha