I know there is a way to do this but for some reason I am stuck. I have an event taking place on 5/25. So that needs to be the due date and it CAN NOT MOVE. I then have maybe 40 or so tasks leading up to it, all of which have to occur in certain sequences. I am not able to set up the project. One of two problems occurs. Either I enter a dependency and all of my dates vanish. Or if I enter dummy dates on all tasks (which is about as anti-project management as it gets), and THEN attempt to sequence them, those dates stay in place while forcing my event due date outward, when the opposite should occure. The task dates need to all move back in time in order to accommodate the project due date. Anyone know what I am obviously missing here? I am used to traditional PMIS systems that can all do this so maybe I just need to retrain my mind here? Thanks to whomever can help.