diff --git a/RoboidControl/Participant.py b/RoboidControl/Participant.py
index 9943b4d..79a553a 100644
--- a/RoboidControl/Participant.py
+++ b/RoboidControl/Participant.py
@@ -8,6 +8,8 @@ class Participant:
     """
     def __init__(self, ip_address, port):
         """! Create a new participant with the given communcation info
+        @param ip_address The IP address of the participant
+        @param port The UDP port of the participant
         """
 
         ## The Ip Address of a participant. When the participant is local, this contains 0.0.0.0
@@ -15,16 +17,27 @@ class Participant:
         ## The port number for UDP communication with the participant. This is 0 for isolated participants.
         self.port = port
 
-        ## The network ID of the participant
+        ## he network Id to identify the participant.
         self.network_id =0
 
         ## The things managed by this participant
         self.things = set()
 
+    def Get(self, thing_id):
+        """!  Get the thing with the given properties
+
+        @param thing_id The ID of the thing
+        @return The thing if found, None in other cases
+        """
+        for thing in self.things:
+            if thing is not None and thing.id == thing_id:
+                return thing
+        return None
+
     def Add(self, thing, check_id = True):
         """! Add a new thing for this participant. 
         @param thing The thing to add
-        @param check_id When true, the thing ID of the thing is checked. If it is 0, a new thing Id will be assigned.
+        @param check_id If true, the thing.id is regenerated if it is zero
         """
         if check_id and thing.id == 0:
             thing.id = len(self.things) + 1
@@ -34,25 +47,16 @@ class Participant:
             if found_thing == None:
                 self.things.add(thing)
     
-    def Get(self, thing_id):
-        """! Find a thing managed by this participant
-
-        @param thing_id The ID of the thing
-        @return The thing if found or nullptr when no thing has been found
-        """
-        for thing in self.things:
-            if thing is not None and thing.id == thing_id:
-                return thing
-        return None
-
     def Remove(self, thing):
-        """! Remove a thig for this participant
+        """! Remove a thing for this participant
         @param thing The thing to remove
         """
         self.things.remove(thing)
 
-    ## Update all things
-    def Update(self, currentTimeMs):
+    def Update(self, currentTimeMs=0):
+        """! Update all things for this participant
+        @param The current time in milliseconds (optional)
+        """
         for thing in list(self.things):
             if thing is not None:
                 thing.Update(currentTimeMs)