The video is for showing how Block Element – Page Hero works.
I recommended βthis because you needed the “Header picture” section to be above the sidebar and content meaning you need the Header to be hooked before the main content area.
Block Element – Page Hero effectively does this as it hooks places the layout you’ve made in it, above the main content, making it display on top of the content and the sidebar.
Can you give it a try? Also, can you link us to the site you’re working on to see it’s current layout?