I know I’m a little late in posting this but it’s better late than never!!
So, with Flash Builder 4.5 we introduced a lot of new coding productivity features. Know about the new features here http://www.adobe.com/devnet/flash-builder/articles/flashbuilder45-coding-enhancements.html
What more… The Quick Assist feature is extensible. It means that you can write your own quick assists and use them or share them within your team. Sreeni has posted a nice write-up on how to extend quick assists. See more details here