Or how about the ability to add "cameras" to the scene?
You add a load to the scene in different places and then flip between them to quickly change the view point. Whatever movement you make in the 3D window just affects the current camera, leaving the others where they are.
And you could add notes to each camera using the standard object text facility.
(Plus that would be a nice feature to be able to add to an exporter, say to define track-side cameras on a racing circuit)
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