To create more natural looking animations, you can apply an ease to keyframes. The affected duration is visible in the color bright purple. Select a keyframe and click on the ease label to change it.
Ease over multiple keyframes
You can change the ease between 2 keyframes. When multi-select keyframe is supported (on the backlog), it will be possible to apply easing over multiple keyframes. Giving you more control.
This is not yet supported, but also high on the backlog. Draw your own ease curve (generates a custom interpolation between keyframes). Same as MoJS.