Now, you can create multiple global blocks for one site. It will allow you to create separate global headers and footers for different website versions (desktop, mobile, and tablet), as well as add one global block to several pages and the other one to other pages.
For example, you can create one global header for the home page and contact page and another one for the benefit page and company’s product section, fill those global blocks with content, and hide each of them on the required pages. Due to the fact that the block is global, all the changes will be automatically applied to the other pages where this global block is located.