Use a B&W image 8bit or 16bit
1. tint it on Color tab
2. add one or two control points on Selective Correction tab - do not map them to other colors
3. go back to Color tab and reset the color line to make it B&W
4. go to Selective Correction tab and add one or more other control points -> they will be added to the corresponding color parts of the color wheel instead of to just the white point
If you map the colors in the step 2, PWP crashes when you switch to Selective Correction tab in the step 4.
-----
Also, there is no Reset command int the Color tab settings. It is not possible to set either of the casts neutral.
Adjust revisited
Moderator: jsachs