Changes made to the Header and Footer of the structure will automatically apply to all child sections within that structure. This ensures consistency across the document by propagating updates from the parent section to its associated child sections. When a user modifies the content or formatting of the Header or Footer at the top level, those changes will be reflected in all linked sections, reducing the need for manual updates and ensuring uniformity across related sections. This feature streamlines document management, saving time and ensuring cohesive presentation.