[NTG-context] Chapters with parts

Hi! I'm typesetting a book with chapters with parts, such as: Chapter 25-I Chapter 25-II Chapter 25-III Chapter 25-IV Chapter 26 Chapter 27-I How can I achieve this in ConTeXt? Thanks in advance for any help! Marcus Vinicius --------------------------------- Yahoo! Mail Use Photomail to share photos without annoying attachments.