adjusting shadows (intensity, color, blur, focal distance...) independently to its light source. At times, I am going for a certain reflection in my material but this will than crew up my desired shadow or vs. Two different renderings and Photoshop will solve that issue, but it would be nice to do it all at once:
If you have the pro version you have an HDRi editor where you can add points for highlighting and you can also manipulate the HDR map with tone, rotation, contrast etc etc
Martin