That’s a big question. Very basic: You start by linking all tasks with dependencies. Then as you manage actual start and finish, those changes push future tasks in/out as appropriate for their dependencies. Buy a book or search for webinars. MPUG probably has webinars. Eric Uyttowall’s Forecast Scheduling is a good book to reference, but there are others. Sorry, that’s not a question that can be answered in a forum, but hope it helps.