How to display all collision gizmos in the game window?

Unity Engine
1

I want to see all my collision boxes/spheres in the game window (in the editor) as I’m playing, regardless of if they are selected in the Hierarchy, but enabling Gizmos with SphereCollider doesn’t work. I see other gizmos like audio sources and lights and stuff, but not collisions. What am I missing? One would think collisions would be one of the most common gizmos developers would want to see.

I’m using Unity 4.0 if that makes a difference.

2

I too would like to know if this was possible. I’m working on collision heavy content and it would be nice to be able to fine tune the collision on various rigid body objects.