How do I add theme screen options to the Event admin area?

My theme has a standard page layout that includes a header image. I am creating a new event and and there is no way to specify the header background image because the upload option is not present. I checked the screen options dropdown and it wasn't there either.

Is there a way to import current theme screen options into the Events+ screen options so I can specify a header and other page display options?

Thanks,
David