I'm not saying I'm not buying this book... I'm thinking it over... but I just bought Movie Outline (software) that does this too... instead of sequences , it calls them steps... so you can organize your screenplay, reorder steps quickly, see things in script mode, index card mode, scene list, step list etc. I think this book may go well together with this software for new , brand new screenwriters. And no, nobody is paying me for saying nice things about the software, though I wish they would... maybe once I sell a screenplay!