Copying exposed references between directors

Hmm... it appears there is no accessor for what values are actually stored. A couple options - you could use EditorUtility.CopySerialized to copy all serialized values. That might be overkill. Or you could use SerializedObject and SerializedProperties to do the copying and filter out the fields you don't want to copy.

But there doesn't appear to be an API to access those specific table entries.

 

Ok, that's a good use case

You can set the names explicitly on exposed references via script. For example, given a control track clip c, you can give the exposed references an explicit name

((ControlPlayableAsset) c.asset).sourceGameObject.exposedName = "Explosion";

Then on your playable director(s), set that name explicitly.

playableDirector.SetReferenceValue("Explosion", explosionGameObject).

For track bindings, you can search for the tracks on the timeline with a given name, and set their binding:

playableDirector.SetGenericBinding( FindTrackWithName(timeline), thingToAnimate);

Then you can set all bindings with pre-fixed names and reuse a timeline.