You can also do the opposite. Have an x amount of xref files with HDRI and Vray sun, and even camera. In your scene, you just need to turn the appropriate xref ON for the scenario you want, and OFF the others, leaving always just one of them.
You can also do the opposite. Have an x amount of xref files with HDRI and Vray sun, and even camera. In your scene, you just need to turn the appropriate xref ON for the scenario you want, and OFF the others, leaving always just one of them.