I know that it is not currently possibly for two Things to share the same property (except by using the Api). However, is it possible for one Thing to change the property of another Thing? For reference, I am creating a simple system where there are two lights, and when one person changes the color of their light it should change the other person's light to the same color. I am able to have the information sent to the cloud and change it in the dashboard, but I can't get one Thing's property to connect to another thing. Is this only possible via the api?