Applications :: Keynote Text Animation - Bullets Not Appearing

As a recent convert from PowerPoint to Keynote 09, I can't figure out how to do the following: In PowerPoint, I'd often have text animations (e.g. bullet points would appear in a certain way when the mouse clicked) such that the bullet points would appear in groups. For example, the first two would appear together, then on the next mouse click, the next three would appear at the same time. In Keynote it seems you can do this, but the bullets don't appear together, the second will only appear when the first has finished "appearing". Is it possible to get the bullets to appear in groups on a mouse click?