ISO11783 Multipacket

Question on ISO11783. It defines a paged protocol with some of the messages 17 bytes long. How do I interpret these messages? 

My options in Design are either paged protocol(8 Byte each page) or multipacket.  If paged how do I look at a 17 byte message? If mulipacket how do I look at multiple message on the same PGN with info on the same bytes as one another?