Open the Curves dialog box

Control + M

Command + M

Select next point on the curve

Control + Tab

Control + Tab

Select the previous point on the curve

Shift + Control + Tab

Shift + Control + Tab

Select multiple points on the curve

Control-click on the points

Command-click on the points

Deselect a point

Control + D

Command + D

To delete a point on the curve

Select a point and press Delete

Select a point and press Delete.

Move the selected point 1 unit

Arrow keys

Arrow keys

Move the selected point 10 units

Shift + Arrow keys

Shift + Arrow keys

Display highlights and shadows that will be clipped

Alt-drag black/white point sliders

Option-drag black/white point sliders

Set a point to the composite curve

Control-click the image

Command-click the image

Set a point to the channel curves

Shift + Control-click the image

Shift + Command-click the image

Toggle grid size

Alt-click the field

Option-click the field