diff --git a/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs b/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs
index b8d09bb4e..5f430a201 100644
--- a/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs
+++ b/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs
@@ -28,6 +28,7 @@ namespace Barotrauma
 
 			public ServerSettings ServerSettings => GameMain.Server.ServerSettings;
 
+			public void ClientWriteLobby(Client client) => GameMain.Server.ClientWriteLobby(client);
 
 			public static void SendMessage(string msg, ChatMessageType? messageType = null, Client sender = null, Character character = null)
 			{
diff --git a/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs b/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs
index 1261712aa..51f6a23ac 100644
--- a/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs
+++ b/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs
@@ -1826,7 +1826,7 @@ namespace Barotrauma.Networking
             }
         }
 
-        private void ClientWriteLobby(Client c)
+        public void ClientWriteLobby(Client c)
         {
             bool isInitialUpdate = false;
 
diff --git a/Barotrauma/BarotraumaServer/ServerSource/Screens/NetLobbyScreen.cs b/Barotrauma/BarotraumaServer/ServerSource/Screens/NetLobbyScreen.cs
index c24ba4ba1..6028b1fc7 100644
--- a/Barotrauma/BarotraumaServer/ServerSource/Screens/NetLobbyScreen.cs
+++ b/Barotrauma/BarotraumaServer/ServerSource/Screens/NetLobbyScreen.cs
@@ -217,6 +217,11 @@ namespace Barotrauma
             return subs;
         }
 
+        public void AddSub(SubmarineInfo sub)
+		{
+            subs.Add(sub);
+		}
+
         public string LevelSeed
         {
             get
diff --git a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs
index 16a9e5fad..92a43f990 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaClasses.cs
@@ -64,6 +64,14 @@ namespace Barotrauma
 				}
 			}
 
+			public EntitySpawner Spawner
+			{
+				get
+				{
+					return Entity.Spawner;
+				}
+			}
+
 			public GameSession GameSession
 			{
 				get
diff --git a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaCustomConverters.cs b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaCustomConverters.cs
index e8b281153..80b4794e6 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaCustomConverters.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaCustomConverters.cs
@@ -12,8 +12,28 @@ namespace Barotrauma
 
 		public static void RegisterAll()
 		{
+            RegisterSimpleAction<Item>();
+            RegisterSimpleAction();
+        }
 
-		}
+        public static void RegisterSimpleAction<T>()
+        {
+            Script.GlobalOptions.CustomConverters.SetScriptToClrCustomConversion(DataType.Function, typeof(Action<T>), v =>
+            {
+                var function = v.Function;
+                return (Action<T>)(p => function.Call(p));
+            });
+        }
 
-	}
+
+
+        public static void RegisterSimpleAction()
+        {
+            Script.GlobalOptions.CustomConverters.SetScriptToClrCustomConversion(DataType.Function, typeof(Action), v => 
+            {
+                var function = v.Function;
+                return (Action)(() => function.Call());
+            });
+        }
+    }
 }
diff --git a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaSetup.cs b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaSetup.cs
index 447640a81..8baa43914 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaSetup.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Lua/LuaSetup.cs
@@ -274,6 +274,7 @@ namespace Barotrauma
 			UserData.RegisterType<InputType>();
 			UserData.RegisterType<AttackResult>();
 			UserData.RegisterType<Entity>();
+			UserData.RegisterType<EntitySpawner>();
 			UserData.RegisterType<MapEntity>();
 			UserData.RegisterType<MapEntityPrefab>();
 			UserData.RegisterType<CauseOfDeath>();
@@ -293,7 +294,6 @@ namespace Barotrauma
 			UserData.RegisterType<Hull>();
 			UserData.RegisterType<Gap>();
 			UserData.RegisterType<PhysicsBody>();
-			UserData.RegisterType<SubmarineBody>();
 			UserData.RegisterType<InvSlotType>();
 			UserData.RegisterType<ItemPrefab>();
 			UserData.RegisterType<SerializableProperty>();
@@ -303,7 +303,6 @@ namespace Barotrauma
 			UserData.RegisterType<Fabricator>();
 			UserData.RegisterType<Pair<JobPrefab, int>>();
 			UserData.RegisterType<ContentPackage>();
-			UserData.RegisterType<SubmarineInfo>();
 			UserData.RegisterType<SubmarineBody>();
 			UserData.RegisterType<Explosion>();
 			UserData.RegisterType<AIController>();
@@ -338,6 +337,7 @@ namespace Barotrauma
 			AddCallMetaMember(UserData.RegisterType<Signal>());
 			AddCallMetaMember(UserData.RegisterType<Color>());
 			AddCallMetaMember(UserData.RegisterType<Point>());
+			AddCallMetaMember(UserData.RegisterType<SubmarineInfo>());
 
 #if SERVER
 
@@ -415,6 +415,7 @@ namespace Barotrauma
 			lua.Globals["ClientPacketHeader"] = UserData.CreateStatic<ClientPacketHeader>();
 			lua.Globals["ServerPacketHeader"] = UserData.CreateStatic<ServerPacketHeader>();
 			lua.Globals["RandSync"] = UserData.CreateStatic<Rand.RandSync>();
+			lua.Globals["SubmarineInfo"] = UserData.CreateStatic<SubmarineInfo>();
 
 #if SERVER
 
diff --git a/docs/lua/Networking.lua b/docs/lua/Networking.lua
index 37877e290..e44deef1f 100644
--- a/docs/lua/Networking.lua
+++ b/docs/lua/Networking.lua
@@ -17,7 +17,7 @@ function Networking.RequestPostHTTP(url, callback, textData, contentType) end
 function Networking.RequestGetHTTP(url, callback) end
 
 --- Creates a new net message, returns an IWriteMessage
--- treturn IWriteMessage netMessage
+-- @treturn IWriteMessage netMessage
 -- @realm shared 
 function Networking.Start(netMessageName) end