Choosing a Specific Value on a Color Adjustment Curve?

When using a color adjustment curve (Image -> Curves), is there a way to pick a specific color or grey control point that you want to adjust?

That is – I know I can pick a specific point on the line, and that line represents the color or grey I want to shift in the image. I’m looking for a way to pick a specific value vs. free form clicking the line in the UI element. My interest in doing this is to more precisely target the areas I’m interested in adjusting.

Another way of asking this question is "is there a way to get the acorn curve adjustments to act more like Lightroom’s :))

I’m currently using an older version of acorn 7.4.6. I’m interested in whether the above is possible in my version of acorn, as well as in the current upgraded version of Acorn 8.

“No, it doesn’t work that way” is an acceptable answer if you know that’s true :slight_smile:

There’s no way to pick a specific color, but it sounds like a good idea and I’ll take this as a feature request.