Can I add a monthly graphic and blurb?

I’m using the free Version 3.3.16. My client wants to add a topical graphic and sentence at the top for each month in the main monthly calendar view. I don’t see how to do either of these in the free version. I’ve searched the documentation and forums for the Pro version about either of these options and can’t find anything. Has anyone done this before? Does anyone know if this is an option with the Pro version? TY