You need to select keyframes in order to edit them. You can select one keyframe at a time, marquee select a group of keyframes, or select all keyframes in a given channel.

Selected keyframes are yellow. Unselected keyframes are red.

To select a keyframe:

1. In the Animation > Curves menu, position the cursor over the keyframe and click.

   
   

   The keyframe is selected.

To select multiple keyframes:

1. In the Animation > Curves menu, click a keyframe to select it and then hold down Ctrl and click additional keyframes to add them to the selection.
   NoteTo deselect a selected keyframe, hold down Ctrl and click the keyframe. This is useful when you make a marquee selection but you would like not to include one or more keyframes in the selection.

   
   

   If you release the Ctrl key and then click a keyframe, this keyframe is selected and the previous selection is cleared.

To marquee select multiple keyframes:

1. In the Animation > Curves menu, drag to draw a marquee selection rectangle around the keyframes you want to select.

   
   

   Keyframes inside the marquee selection are selected.

2. To zoom in on the selected area, hold down the Alt key when drawing the marquee selection.

To select all keyframes in the selected curve:

1. In the Animation > Curves menu, click AllPts in the Animation Controls.