Adventurous Free: Adding Featured Content boxes

Hi. I'm really liking the Adventurous theme, but can anyone tell me if there is a way to add more feature content boxes. It comes with 4 standard, and it looks like I can add more, but when I set it to 8, it doesn't give me that option. Is that only with the pro version, or DOES the Pro version do that, or am I missing something. I have 8 main headings I'd like to use. It only offers 4. Thanks, Caat