This would be a great help, specially when dealing with smaller objects.
We have to use PhotoShop for cropping, save to a new file, import it as a backplate... It's tedious.
Let's make our job easier again KeyShot!
Agree. A better workflow is to import the backplate, set the camera/realtime/render size and pan or zoom the backdrop to suit your image. The final render output would simply crop any backplate content beyond the render frame.
That's exactly how I see it: Realtime (just like Keyshot)
Cheer.