We are using ONYX-ProductionHouse 12.1 as our RIP for the Epson S80600. Can someone help us figure out how to print the spot channel for metallic ink at the same time as cmyk. We are trying to put the metallic ink behind the CMYK, but print them at the same time so they line up correctly. We are currently having to manually rewind the roll after the cmyk is printed to then print the spot metallic ink channel on top. Its obviously not lining up perfectly. Is this possible with the S80600/ProductionHouse ??