Flipping Channels and Keyframes
Negate flips a channel or a group of keyframes vertically. Reverse flips a channel or a group of keyframes horizontally.
Typically, you reverse or flip keyframes so that you can create symmetry with an animation. For example, use Reverse on an image that is warping from a sphere to a flat plane so that it then goes from a flat plane back to a sphere again. Perform these functions in the Animation Curve window.
To reverse a channel or group of keyframes:
In the Animation menu, click
to display the Curves.
In the Animation Channel Editor, select a curve or group of keyframes.
Click Reverse.
The selection is flipped vertically.
To negate a channel or group of keyframes:
In the Animation menu, click
to display the Curves.
Select a curve or group of keyframes.
Click Negate.
The selection is flipped horizontally.