We were looking for a way to verify that all passes through the press have been completed. Often times we print with dozens of colors and not always possible to do it in the sequence of the ink palette. We've tried a small visual mark but this does not always catch a missed color and then the project keeps printing and you don't see the error until it is completed. Is there a way for the press operator to see at a glance that all colors have been used for the job? What do others do?