diff --git a/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs b/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs
index 20289562e..d9f9be6ff 100644
--- a/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs
+++ b/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaClasses.cs
@@ -314,6 +314,11 @@ namespace Barotrauma
 				return item.GetComponent<LightComponent>();
 			}
 
+			public static CustomInterface GetCustomInterface(Item item)
+			{
+				return item.GetComponent<CustomInterface>();
+			}
+
 			public static void DispatchRespawnSub()
 			{
 				GameMain.Server.RespawnManager.DispatchShuttle();
diff --git a/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaSetup.cs b/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaSetup.cs
index ef0dfa9e1..421c9122e 100644
--- a/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaSetup.cs
+++ b/Barotrauma/BarotraumaServer/ServerSource/Lua/LuaSetup.cs
@@ -145,6 +145,7 @@ namespace Barotrauma
 			UserData.RegisterType<ItemComponent>();
 			UserData.RegisterType<WifiComponent>();
 			UserData.RegisterType<LightComponent>();
+			UserData.RegisterType<CustomInterface>();
 			UserData.RegisterType<Inventory>();
 			UserData.RegisterType<CharacterInventory>();
 			UserData.RegisterType<Hull>();
@@ -155,7 +156,7 @@ namespace Barotrauma
 			UserData.RegisterType<ItemPrefab>();
 			UserData.RegisterType<SerializableProperty>();
 			UserData.RegisterType<StatusEffect>();
-
+			UserData.RegisterType<CustomInterface.CustomInterfaceElement>();
 
 			lua = new Script(CoreModules.Preset_SoftSandbox | CoreModules.LoadMethods);
 			
@@ -196,6 +197,7 @@ namespace Barotrauma
 			lua.Globals["ChatMessage"] = UserData.CreateStatic<ChatMessage>();
 			lua.Globals["Hull"] = UserData.CreateStatic<Hull>();
 			lua.Globals["InvSlotType"] = UserData.CreateStatic<InvSlotType>();
+			lua.Globals["Gap"] = UserData.CreateStatic<Gap>();
 
 			foreach (string d in Directory.GetDirectories("Mods"))
 			{
diff --git a/Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/CustomInterface.cs b/Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/CustomInterface.cs
index bc7f71527..2e3e79f43 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/CustomInterface.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/CustomInterface.cs
@@ -7,7 +7,7 @@ namespace Barotrauma.Items.Components
 {
     partial class CustomInterface : ItemComponent, IClientSerializable, IServerSerializable
     {
-        class CustomInterfaceElement : ISerializableEntity
+        public class CustomInterfaceElement : ISerializableEntity
         {
             public bool ContinuousSignal;
             public bool State;
@@ -130,7 +130,7 @@ namespace Barotrauma.Items.Components
 
         public override bool RecreateGUIOnResolutionChange => true;
 
-        private readonly List<CustomInterfaceElement> customInterfaceElementList = new List<CustomInterfaceElement>();
+        public readonly List<CustomInterfaceElement> customInterfaceElementList = new List<CustomInterfaceElement>();
         
         public CustomInterface(Item item, XElement element)
             : base(item, element)