Hmmm, that's exactly what I was hoping to see! I just get the pixel snap option and nothing else.
Just tried it with a fresh scene. I created a sprite using your menu. I add a UIButton to it using your menu. And the result is in the picture. I tried creating an empty object, adding a UIButton and then creating a sprite separately and using it as the target for the button but this made no difference.
I'm using Unity 4.5.0 pro.
... some time later...
Ah ok I hadn't selected an atlas and so it doesn't show the options until I do. Problem solved.
Would be good if that shot you included here was added to the docs as they shows a sprite example without those options visible.
Thanks