OSF: How to Display Promotional Bar on Header Row on Some Pages?

Summary:

How to display a promotional bar on the header row on some pages, but not on some other pages?

Content (required):

Since the OOTB adaptive region in the header is for every page, we can't modify that to have promotional bar. How can the dynamic banner be displayed on the header row?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):