I'm trying to figure out how to switch cameras in an animation.
I figure out how to animate a camera:

http://vimeo.com/37573896

At first, I thought maybe it could only be render one camera at a time.
Then use a movie editor. To put it all together.

But when I looked at the 4 port view, it seems to be working.
When I render, I only seen one camera view.

I thought the layers might be the answer. I don't know if I just did something wrong,
or that isn't the answer either.

Can anybody help?

PS. How do you turn off automatic keyframes?