The Dopesheet window lets you view all keyframe animation for selected objects in the current scene, and edit animation by moving, copying, cutting, and pasting keyframes.
The Dopesheet window is an exploded view of the Action timeline in the Transport Controls, letting you view keyframes for every animated property of selected objects.
Dopesheet window A. Dopesheet Property options B. Dopesheet Property list C. Dopesheet Timeline area