@TinyTracker1 Hey! It depends a little on what data you have at hand. You need to first build your new Rotator and then apply that rotator to each actor, by using the SetActorRotation node.
In this example I have two sample actors and I rotate all the other actor in the direction that points from the first sample actor to the second.
If you already have an actor pointing in the direction that you want, you can pass that rotation directly into the SetActorRotation node.
Hope this helps!