Can each Viewport have its own lighting and background?

For lights you can do this is by using different classes for different lights or groups of lights, then having the appropriate class(es) on or off in any particular VP. I do this with different sun angles all the time.

[ms-protect-content id=”34491,34492,34493, 34494, 34495, 34496, 344927″]For backgrounds, try clicking the Lighting Options button in the Object Info Palette. You will notice that here you can choose a particular HDRI (or other) background for the viewport.
 
You can turn Viewport lights on and off in the Visualizations Palette regardless of classes – as long as the light is in an active class.
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