ADDED .LINK 

// give just the model.[observable] to sync with and your done. 
    // This will wait for the model to be created then sync up automatically
    // Allowing a complete seperation of consernse as only the observable that needs to sync is set
    // No need to manually go modify second model to pub/sub on a topic
    //direction = Two way, In, Out -- if this object is set to In then other object will get out and vise versa