P: Color Matching like White Balance

Hello

I have an idea about slightly different way of White Balancing:

1. suppose we have photographed a human head in several different light scenarios with varying light color

2. we have also photographed neutral gray patch in one of those photos to reach correct WB for this particular photo

3. now we could use the new tool [let's call it 'Color Anchor'] which works this way:
a) we sample color of the skin on the forehead of this human and ACR gets color data, eg. RGB(200, 153, 129) [#c89981]
b) we then 'lock this color' in this tool
c) next we take another photo of this human and click with this new tool and its locked color on the forehead
d) now since this is the same human and the same forehead - we can reach the same colors and WB by applying WB transformation from 'Color Anchor' tool

I have no doubts it could be valuable for almost everyone since WB is very important when developing RAWs.

cheers,
Sempoo