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# Curves Menu — Hue, Lightness, Saturation and Luminance

Refer to the following table for numeric keypad hotkey functions when working on the Hue, Lightness, Saturation or Luminance values in the Curves menu.

Press: | To:
--- | ---
1 | Decrease the cyan point's hue, lightness, saturation, or luminance value.
2 | Decrease the magenta point's hue, lightness, saturation, or luminance value.
3 | Decrease the yellow point's hue, lightness, saturation, or luminance value.
4 | Increase the cyan point's hue, lightness, saturation, or luminance value.
5 | Increase the magenta point's hue, lightness, saturation, or luminance value.
6 | Increase the yellow point's hue, lightness, saturation, or luminance value.
7 | Decrease the red point's hue, lightness, saturation, or luminance value.
8 | Decrease the green point's hue, lightness, saturation, or luminance value.
9 | Decrease the blue point's hue, lightness, saturation, or luminance value.
Enter | Decrease all points' hue, lightness, saturation, or luminance value.
+ (add) | Increase all points' hue, lightness, saturation, or luminance value.
/ (divide) | Increase the green points' hue, lightness, saturation, or luminance value.
* (multiply) | Increase the blue points' hue, lightness, saturation, or luminance value.
- (subtract) | Reset the current curve.
NumLock | Increase the red point's hue, lightness, saturation, or luminance value.