Sorry that did not work for me, i did what you said, then when i changed the start date only that date changed, like i said i have many links and predecessors but aloso many that are not linked, so i don't know if this is effecting the movement of every date. I thought there might be someway of highlighting all then putting plus 21 days somewhere and then it would alter all by that amount, can't seem to find this though, so possibly it is not in project. i knew from the start that it would not be as simple as i hoped. cheers steve.