There should be a Back button during bulletin options

Let's say you're going through the bulletin options and lets say you get to the part where it says what kind of transition you want to use. Let's say you wanted to use Fade but you hit something else. Then you hit the More button but then you realize the transition wasn't set to Fade. So you're at the next step but there's no back button. You can't use the Back button on the explorer window and hitting cancel just get's rid of the whole thing.

I think there should be a Back button.