Long time gb eclipe, new ics user. Am i missing the place to configues things like ststus bar icons and how many homescreen windows?
I don't think you can customize the status bar toggles right now, you could use Notification Toggles (an ap) to add another set that you can customize, however. As for homescreen tweaks, that's part of whatever launcher you use, I'm still rocking ADW EX, which lets you change just about everything with regards to your home launcher (number of screens, animation between screens, format of app drawer, etc)
Sorry this post is all "use other apps" but that's generally the beauty of Android too