diff --git a/README.md b/README.md
index a7b6033..725f7e1 100644
--- a/README.md
+++ b/README.md
@@ -238,9 +238,11 @@ If you select the **drawing** layer you can also add polylines, polygons and rec
 
 The **worldmap in** node can be used to receive various events from the map. Examples of messages coming FROM the map include:
 
-    { "action": "connected" }    // useful to trigger delivery or redraw of points
-    { "action": "click", ... }   // when a marker is clicked
-    { "action": "move", ... }    // when a marker is moved
+    { "action": "connected" }  // useful to trigger delivery or redraw of points
+    { "action": "disconnect", "clients": 1 }  // when a client disconnects - reports number remaining
+
+    { "action": "click", "name":"Jason", "layer":"gps", "icon":"male", "iconColor":"blue", "lat":51.024985, "lon":-1.39698 }   // when a marker is clicked
+    { "action": "move", "name":"Jason", "layer":"gps", "icon":"male", "iconColor":"blue", "lat":51.044632, "lon":-1.359901 }    // when a marker is moved
 
     { "action": "point", "lat": "50.60634", "lon": "-1.66580", "point": "joe,male,mylayer" }
     { "action": "draw", "type": "rectangle", "points": [ { "lat": 50.61243889044519, "lng": -1.5913009643554688 }, { "lat": 50.66665471366635, "lng": -1.5913009643554688 }, { "lat": 50.66665471366635, "lng": -1.4742279052734375 }, { "lat": 50.61243889044519, "lng": -1.4742279052734375 } ] }
@@ -250,6 +252,8 @@ The **worldmap in** node can be used to receive various events from the map. Exa
     { "action": "addlayer", "name": "myLayer" }   // when a new map layer is added
     { "action": "dellayer", "name": "myLayer" }   // when a new map layer is deleted
 
+All actions also include a `msg._sessionid` property that indicates which client session they came from. Any msg sent out that include this will ONLY to that session - so you can target map updates to certain sessions only if required.
+
 ## Controlling the map
 
 You can also control the map via the node, by sending in a msg.payload containing a **command** object. Multiple parameters can be specified in one command.
diff --git a/worldmap.html b/worldmap.html
index ca5b53f..6ae726a 100644
--- a/worldmap.html
+++ b/worldmap.html
@@ -194,6 +194,7 @@ then by default <code>⌘⇧m</code> - <code>ctrl-shift-m</code> will load the m
     <p>Receives actions from a worldmap web page.</p>
     <p>Actions include
     <ul><li><b>connected</b> - when a new client connects
+        <li><b>disconnect</b> - when a client disconnects
         <li><b>click</b> - when a marker is clicked</li>
         <li><b>move</b> - when a marker is dragged/moved</li>
         <li><b>point</b> - when a point is added manually using right-click</li>
@@ -203,8 +204,11 @@ then by default <code>⌘⇧m</code> - <code>ctrl-shift-m</code> will load the m
         <li><b>addlayer</b> - when an overlay is added to the map</li>
         <li><b>dellayer</b> - when an overlay is removed from the map</li>
     </ul>
-    Use the debug node to see the complete payload of the msg returned. Further information
-    can be found in the <a href="https://github.com/dceejay/RedMap/blob/master/README.md#events-from-the-map" target="_new">Events section</a>
+    Use the debug node to see the complete payload of the msg returned.</p>
+    <p>All actions also include a <code>msg._sessionid</code> property that indicates which client session the
+    action came from. Any outgoing msg that includes this property will only go back to that session.</p>
+    <p>Further information can be found in the
+    <a href="https://github.com/dceejay/RedMap/blob/master/README.md#events-from-the-map" target="_new">Events section</a>
     of the README.</p>
 </script>