In the old 8:8:8 that I used to operate, marks could be advanced a field by using a < CMD-: > button, I think. That is, one of the colon or "frame" keys did it. Joe Owens Presto!Digital Colourgrade 302-9664 106 Avenue Edmonton, Alberta T5H0N4 +1 780 421-9980 jpo at prestodigital.ca