Best strategy to calibrate multi-camera videos? - 2

After watching this. Best strategy to calibrate multi-camera videos?

Wow that guy matched the colors without even comparing them side by side. Amazing !

I notice that the color grading has 3 controls and changing any of them seems to change almost all the colors.

Is there a software tool available that can assist those of us who are a lot less talented than the guy in the video?

Tool should take side by side images and calculate the 3 sets of corrections based on user selected test points.