Not without hacking apart the template in Photoshop.
But don't worry. If you add more menu buttons than a template can hold, the program will generate as many menu pages as needed to accommodate your scene markers.
Thank you for your reply.
Unfortunately, the very thing I am trying to avoid is multiple main menu pages. Particularly bothersome is the each and every main menu page that is added will automatically have two buttons devoted to "Play" and "Scenes", leaving only one or two for other usage.