Identifying Out of Print Gamut Colours from Graph

I think there’s a way to get what you need, but it may not be exactly the way you were asking for it.

Bring the image into the Worksheet, and apply the profiles in the workflow. You’d want to start with the larger profile and follow with the smaller profile. Sample the image as I showed you in this thread.

Turning on dE will give you the difference between the two. (See screenshot attached.) The dE column presents a heatmap of the image showing all the large differences in red, small difference in green, etc. In my example, the reds in the dE heatmap show where the out of gamut colors are in the image.

Graphing the dE column will allow you to see the vectors showing the out of gamut pinks being moved into gamut.

I think you were looking to click on a point in the Grapher and define things from there. We have to go about it from the other direction - from the Worksheet and the image. ColorThink has to go about it a different way - but you do get the out of gamut information this way.