The view area of the Dope Sheet displays keys hierarchically along the vertical axis. It displays time along the horizontal axis as cells or blocks.
Animated attributes are bounded by solid lines to indicate their extents. The colors of the blocks define the placement of an attribute or group of attributes within the hierarchy of the Dope Sheet.
Editing ranges of time and keys with the Dope Sheet Manipulator
See Copy, cut, paste, scale, move, or mute a range of time and keys with the Dope Sheet Manipulator.
The Dope Sheet pop-up menu bar
-clicking anywhere in the view area causes a pop-up menu containing the Dope Sheet menu bar items to appear.
Select Tool, Move Tool, and Scale Tool
In addition to the Dope Sheet tools in the toolbar, the Select Tool, Move Tool, and Scale Tool also are used to manipulate keys in the view area of the Dope Sheet. Because of the hierarchical nature of the Dope Sheet outliner, you can edit groups of attributes by type. This lets you perform powerful timing editing on large numbers of objects at once. See Select Tool, Move Keys Tool, and Scale Keys Tool.
You can scroll the graph view of the Dope Sheet horizontally by holding down the (Linux and Windows) or (Mac OS X) key on the keyboard and -dragging.
To scale the graph view uniformly, hold down the or key and drag or -drag the cursor.
To scale the graph view along either the horizontal or vertical axis, hold down the or and key, and -drag the cursor horizontally or vertically.