Preview window?

Support Basics & Interface
1

Hello,

I saw this image on the blender features gallery
http://www.blender.org/typo3temp/pics/ab3f1fa402.jpg
Full view is here http://www.blender.org/typo3temp/pics/8acc1f13f8.png

There is a preview window there - it renders the specified part of the image that it’s hiding. How do I add this window?

Thanks
~Lightning

2

Use SHIFT+p

3

Thanks a lot!

This is what I was looking for =)