View Keyframes

What happened to the feature where you can press the ‘k’ key to see 3d keyframes when animating? I’m talking about what this guy does at 12:50 in this video:

I don’t know the hot key for multiple wire frame keyframe display. What they have now is “Motion Paths” under Object property. With it you can display object path over animation sequence and keyframe number.

Actually, I found what I was looking for right above that. The “Duplication” menu has an option for frames that will show the actual object in its position for each keyframe and it makes it easy to see and edit the position of each keyframe relative to the others. The only thing with that is that it will show up in the render (I’ll just use those to edit keyframes and then turn it off for the render).