update config with some flags, not sure

cluster/prod/app/jitsi/config/config.js

@@ -648,6 +648,20 @@ var config = {
     // Sets the conference subject
     // subject: 'Conference Subject',
 
+     // Feature Flags.
+    flags: {
+        // Enables source names in the signaling.
+        sourceNameSignaling: false,
+
+        // Enables sending multiple video streams, i.e., camera and desktop tracks can be shared in the conference
+        // separately as two different streams instead of one composite stream.
+        sendMultipleVideoStreams: false,
+
+        // Signal that this client supports receiving multiple video streams. Without this flag jicofo will enable
+        // multi-stream backward compatibility.
+        receiveMultipleVideoStreams: false,
+    },
+
     // List of undocumented settings used in jitsi-meet
     /**
      _immediateReloadThreshold