I hope you are well today and thank you for your question.
The header banner settings screenshot that you have displayed only displays ad banner in the header.
To display ad banner in the middle of the page, please edit the page using visual page builder and add text block content element in which you can add ad banner code.
Actually, Im asking to get rid of the banner section completely in middle of page, can you please let me know how to take that out? thank you so much ๐