I have to admit, I can’t seem to find my Control Panel either. I’m getting used to the new layout and features, but this one is eluding me as well.
EDIT:
Nevermind. I found it. @Krulos you need to click the little green rectangle icon that looks like a layout page, next to the archive where you want to add the story. Your Control Panel will open up when you do that. It was too damned obvious, and I was looking for something on my actual profile.