I have a 550, Production Finisher and EX560 Fiery. I want to print an eight-page saddle-stitched booklet, page size 5.5x8.5 when folded and stitched. My source document is a four-page PDF, page size 11x8.5, set-up in printers spreads. How do I set-up the properties in the Fiery (and maybe also the PDF)? I can't figure it out.