Keynote 7 & Simultaneous Animation

Howdy,

I can't seem to do simultaneous animation (several combined builds in the Build Order) in Keynote 7. I understand how to create an action for the Build Order menu and how to combine them, but the "Start" drop down doesn't supply the option to have the actions occur at the same time. All I wanted to test was a bunny hopping across the screen and growing larger at the same time, instead, Keynote 7 only seems to allow it to happen once at a time.

Cheers,

Huckleberry