Copy and Paste Easing
You can copy the easing curve from a set of keyframes on to another set of keyframes. This action won’t change their values, just their time interpolation.
First, select and copy the data from the keyframes you want to copy the easing curve from, either using the Copy button or a shortcut. Then, select the keyframes you want to apply the curve to, and press the Paste Easing button.
Please understand how the easing is applied and how to use the modifier keys to target a specific portion of your keyframe selection.
Please notice that as soon as you press the Copy Button, the button itself displays the number of keyframes that have been copied.
In addition to that, but only if you copy one or two keyframes at most, the info bar at the bottom gets populated with numbers. Those are the incoming and outgoing influence values of your keyframes. In the example above, 90 and 55 are the incoming and outgoing influence values for both the first and the second keyframes.
Copy and Paste Values
Copy the values of one or more keyframes to another set of keyframes without changing their time interpolation.
First, select and copy the data from the keyframes you want to copy the values from, either using the Copy button or a shortcut.
Then, select the keyframes you want to apply the values to, and press the Paste Value button.