Dope Sheet Edit menu

Undo cancels the last operation. Redo does the last undone operation again.

Cut removes existing keys from a selected attribute and places a copy of that information on the clipboard. If a group of keys are selected in the View area, this area is removed when you choose Edit > Cut. If no keys are selected, Cut operates on the item selected in the Outliner portion of the Dope Sheet Editor.

Paste adds keys from the clipboard to an attribute. Pasted keys can be merged with existing keys, inserted at a time (displacing existing keys), or used to replace keys at a time.

Delete removes existing keys from a selected attribute. It works the same as Cut except it does not place a copy of the removed keys on the keys clipboard. See Key > Delete in Key menu.

Scale

Scale operates on a selected range of keys, expanding or compressing the animation to correspond to a new time range. Note that Scale operates on the entire range of keys if an attribute, for example, Translate Y, is selected in the Dope Sheet outliner and no key is selected. See Key > Scale in Key menu.

Select Edit > Scale > to see information about the Scale Keys options.

Transformation Tools

Opens a sub-menu where you can access tools for editing in the Dope Sheet.

Select Tool	Hotkey: Q Use the Select tool to select a single key. Shift-select to deselect a key, Middle-drag to move a key. To scale keys, or to edit multiple keys at once, use the Select Keys manipulator.
Select Keys	Use the Select Keys manipulator to drag-select groups of keys. See Edit Keys using the Dope Sheet for more information on using the Select Keys manipulator to edit groups of keys. Note: The Transformation Tools>Select Keys manipulator is different from the Select Tool , because while both tools let you select more than one key, the Select Keys uses a resizeable manipulator where you can view frame numbers.
Insert Keys	Use Insert Keys to place new keys on existing animation channel. Click the key to select it and add a new key.
Move Nearest Picked Key	Use the Move Nearest Picked Key to manipulate individual keys with a single mouse action. This tool is different from the Move Tool as it works only one key, or on the closest selected key of an active channel without needing to precisely select a key in the View area. Select Move Nearest Picked Key > to see the Move Nearest Picked Key Tool Settings: Move Only Lets you drag keys within the area of the preceding and following key. Move Over Lets you drag keys anywhere in the View area. Ripple Lets you drag keys anywhere in the View area, but pushes keys after the selection by the same amount as the move so that keys adjust to stay in sync. Demo of Move Only, Move Over, and Ripple options. You can also double-click the Move Nearest Picked Key icon in the Dope Sheet Toolbar to open the Move Nearest Picked Key Tool Settings.
Move Keys Tool	Hotkey: W Select Move Keys Tool > to see the Move Keys Tool Settings: Move Only Lets you drag keys within the area of the preceding and following key. Move Over Lets you drag keys anywhere in the View area. Ripple Lets you drag keys anywhere in the View area, but pushes keys after the selection by the same amount as the move so that keys adjust to stay in sync. Demonstration of Move Only, Move Over, and Ripple options. You can also double-click the Move Keys Tool icon in the Dope Sheet Toolbar to open the Move Keys Tool Settings.
Scale Keys Tool	Hotkey: R Use Scale Keys Tool to change the duration of a range of keys or to change values on animation channels. Drag to select one or more keys and use the white manipulator handles to resize. Select Scale Keys Tool > to view the Scale Keys Tool Settings: Manipulator Lets you scale keys using a manipulator box surrounding the affected keys. Manipulator: Drag the sides of the manipulator to scale keys Gestural Lets you drag the mouse selection, rather than a scaling box to scale keys. Gestural: Drag to scale selected keys Scale only selected keys Lets you exclude any key that is not directly selected (highlighted) from the scaling action. Note: When Scale only selected keys is off, keys are scaled in "ripple" mode, that is, so keys after the selection are pushed by the same amount so that they stay in sync. You can also double-click the Scale Keys Tool icon in the Dope Sheet Toolbar to open the same Scale Keys Tool Settings.

Snap causes selected keys to snap in time to the nearest whole time unit values or attribute values. Use Select Unsnapped to check for keys not at whole time units. The default is to snap to nearest time units.

Selects all keys from the selected channel, or any keys in the View area if no objects or attributes are selected that are not at a whole time unit.