The Surrounding content settings page
Above all tab sets
Content in the Above all tabs section shows above every tab set in your shop.
Below all tab sets
Content in the Below all tabs section shows below every tab set in your shop.
Below one set of tabs
When the Use a heading to define where the tabs end setting is checked, the last heading in the product description that matches the selected Heading type ends the tabs.
All content that comes after that heading shows below the tab set.
When the Show the heading setting is checked, the heading text shows on the page. When the setting is unchecked, the heading is used to end the tabs but the heading text does not show on the page.