title: Unity Photon room.SetCustomProperties Not Working
body: <p>According to what I looked up online, most of the examples take in one parameter which is a single <code>Hashtable</code>. However, I kept getting an error saying there is no overload method that takes only one argument. It requires three. This is the example I came up with but I still get an error saying it has invalid arguments.</p>
  
  <p>How do I use <code>room.SetCustomProperties</code>?</p>
  
  <pre><code>public void PlacingStone ()
  {
      Hashtable setPlacingStone = new Hashtable {{ RoomProperties.PlacingStone, true }};
      Hashtable currentValues = new Hashtable {{ RoomProperties.PlacingStone,
      (bool) PhotonNetwork.room.customProperties [ RoomProperties.PlacingStone ] }};
      PhotonNetwork.room.SetCustomProperties ( setPlacingStone, currentValues, true );
  
      StartCoroutine ( "WaitOnStone" );
  }
  </code></pre>