Adobe After Effects CS4 - Manual (Page 231)

225 USING AFTER EFFECTS CS4
Animation and keyframes
Last updated 12/21/2009
Drag a keyframe in the Composition panel to move one Position keyframe.
You can move multiple keyframes at one time by selecting them in the Timeline panel before you drag them in the
Composition panel or Layer panel. To move the entire motion path, select all keyframes by clicking the property name
in the Timeline panel before dragging a keyframe in the Composition panel.
Dragging all keyframes on a motion path by one keyframe
Add a keyframe to a motion path using the Pen tool
1 Display the motion path that you want to modify in the Composition panel or Layer panel.
2 Select the Pen tool or Add Vertex tool from the Tools panel.
3 In the Composition panel, place the Pen tool over the motion path where you want to add the new keyframe and
click to add the keyframe.
A new keyframe appears at the frame you clicked, on the motion path and in the Timeline panel. To move the
keyframe, use the Selection tool.