David talks about how to quickly mark scenes for revision here. I’ve been using this program for four years now and this has never occurred to me.
While I am writing this I may as well mention that I highly recommend David’s book Writing a Novel with Scrivener available from amazon.co.uk and amazon.com. In it David takes you through every step needed for getting a book done in Scrivener, even as far as epublishing it onto the Kindle. Hewson is a former tech journalist and a bestselling detective/thriller writer and he really knows his stuff. The book is a model of clarity and full of sensible advice. It’s also full of useful screenshots.