Nate in this thread Loop Start End to Unity suggests to edit AnimationEnd
to change where an animation loops.
However there is no Set
in the property
/// <summary>
/// Seconds for the last frame of this animation. Non-looping animations won't play past this time. Looping animations will
/// loop back to <see cref="TrackEntry.AnimationStart"/> at this time. Defaults to the animation duration.</summary>
public float AnimationEnd { get { return animationEnd; } }