Header Injector
The Header Layout Injector allows you to inject custom Divi Library items before or after the navigation. After the custom layout is created and saved into the Divi Library, you can set it to display on the homepage or any other specific pages.
To select layouts go to Divi → Divi Pixel → Layout Injector.
NOTE: Before Navigation Layout can be only injected when you are using default Divi header, and Fixed Header in Divi Theme Options is disabled.