This Track is Legacy. Please use the ‘Animate Properties’ clip, possible to add on any Action Track.
The Properties Track is the only track in which there are no clips added, but instead works directly with Animation Curves, able to animate any property or field of supported type, on any component attached on the actor gameobject or within its whole transform hierarchy.
On the left side of the Properties Track, you can “Add Properties”, remove existing ones, or select which property to view animation curves for simply by selecting it. Furthermore, an editor of the selected animated property will show, through which you can quickly change, or key the property value at the cutscene’s current time. The animation-supported types currently are: