different layers in different windows

For Blender 2.5, but also perhaps for 2.49 and earlier. It it possible to look at one layer in a window and look at a different layer in a different window at the same time?

The reason why this would be nice is because if I’m working on an object that is a deform or a duplivert prototype and I don’t want to see it in the final scene, but still want to modify it, it would be nice to have it out of the way, but still visible somewhere in my workspace.

Deselect the icon (a square with a chain link) to the right of the layer icons in the 3dview header to unlink the synchronised layers in different windows

Cool. Didn’t realize that was even there. Glad that its possible. Thanks.