I wrote an app that takes aspects of this to the next level, especially the cases where they recommend when to use it. In my app, you capture a full window ins

I wrote an app that takes aspects of this to the next level, especially the cases where they recommend when to use it. In my app, you capture a full window instead of a portion of the screen. Then the snapshot is continually updated. It's not for saving, just for cross-reference really. Though it also works really well in presentations and demos. http://appstore.com/mac/duplicatewindows http://appstore.com/mac/duplicatewindows