How to display different layers in each 3D View? How can I show different layers in separate windows? For example, show layer 1 and 2 in one window, and show layer 3 and 4 in another window?

I need this so I can see everything I am doing correctly since I do have a messy rig.
Disable lock layers to scene in 3D view > Header to use local layers:



Then each 3D view can have it's own visible layers.