diff --git a/Source/Editor/Surface/Archetypes/Animation.MultiBlend.cs b/Source/Editor/Surface/Archetypes/Animation.MultiBlend.cs
index 4d3239205..9773e9695 100644
--- a/Source/Editor/Surface/Archetypes/Animation.MultiBlend.cs
+++ b/Source/Editor/Surface/Archetypes/Animation.MultiBlend.cs
@@ -542,9 +542,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateUI();
             }
diff --git a/Source/Editor/Surface/Archetypes/Animation.StateMachine.cs b/Source/Editor/Surface/Archetypes/Animation.StateMachine.cs
index f044cd6ff..a540ab697 100644
--- a/Source/Editor/Surface/Archetypes/Animation.StateMachine.cs
+++ b/Source/Editor/Surface/Archetypes/Animation.StateMachine.cs
@@ -174,17 +174,17 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateUI();
             }
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 // Ensure to have unique name
                 var title = StateMachineTitle;
@@ -741,9 +741,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 LoadTransitions();
 
@@ -1432,9 +1432,9 @@ namespace FlaxEditor.Surface.Archetypes
             public override int TransitionsDataIndex => 2;
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 // Ensure to have unique name
                 var title = StateTitle;
@@ -1452,9 +1452,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateTitle();
             }
diff --git a/Source/Editor/Surface/Archetypes/Animation.cs b/Source/Editor/Surface/Archetypes/Animation.cs
index 6364106e4..16b7993de 100644
--- a/Source/Editor/Surface/Archetypes/Animation.cs
+++ b/Source/Editor/Surface/Archetypes/Animation.cs
@@ -49,9 +49,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 if (Surface != null)
                     UpdateTitle();
@@ -162,9 +162,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 // Peek deserialized boxes
                 _blendPoses.Clear();
diff --git a/Source/Editor/Surface/Archetypes/Comparisons.cs b/Source/Editor/Surface/Archetypes/Comparisons.cs
index dc90c2123..a0efbd92f 100644
--- a/Source/Editor/Surface/Archetypes/Comparisons.cs
+++ b/Source/Editor/Surface/Archetypes/Comparisons.cs
@@ -50,9 +50,9 @@ namespace FlaxEditor.Surface.Archetypes
             {
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 // Restore saved input boxes layout
                 if (Values[0] is byte[] data)
@@ -62,9 +62,9 @@ namespace FlaxEditor.Surface.Archetypes
                 }
             }
 
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateBoxes();
                 GetBox(0).CurrentTypeChanged += box => UpdateBoxes();
diff --git a/Source/Editor/Surface/Archetypes/Constants.cs b/Source/Editor/Surface/Archetypes/Constants.cs
index 72a77ea4d..cbe7822e3 100644
--- a/Source/Editor/Surface/Archetypes/Constants.cs
+++ b/Source/Editor/Surface/Archetypes/Constants.cs
@@ -43,9 +43,9 @@ namespace FlaxEditor.Surface.Archetypes
                 box.CurrentType = new ScriptType(Values[0].GetType());
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 var box = (OutputBox)GetBox(0);
                 if (Values[0] == null)
@@ -100,9 +100,9 @@ namespace FlaxEditor.Surface.Archetypes
                 base.OnValuesChanged();
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 _output = (OutputBox)Elements[0];
                 _typePicker = new TypePickerControl
@@ -238,9 +238,9 @@ namespace FlaxEditor.Surface.Archetypes
                 base.OnValuesChanged();
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 _output = (OutputBox)Elements[0];
                 _keyTypePicker = new TypePickerControl
diff --git a/Source/Editor/Surface/Archetypes/Flow.cs b/Source/Editor/Surface/Archetypes/Flow.cs
index 11eec534a..b0922b1b7 100644
--- a/Source/Editor/Surface/Archetypes/Flow.cs
+++ b/Source/Editor/Surface/Archetypes/Flow.cs
@@ -25,9 +25,9 @@ namespace FlaxEditor.Surface.Archetypes
             {
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 // Restore saved output boxes layout
                 var count = (int)Values[0];
@@ -35,9 +35,9 @@ namespace FlaxEditor.Surface.Archetypes
                     AddBox(true, i + 1, i, string.Empty, new ScriptType(typeof(void)), true);
             }
 
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 _removeButton = new Button(0, 0, 20, 20)
                 {
@@ -107,9 +107,9 @@ namespace FlaxEditor.Surface.Archetypes
             {
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 // Restore saved output boxes layout
                 if (Values[0] is byte[] data)
@@ -119,9 +119,9 @@ namespace FlaxEditor.Surface.Archetypes
                 }
             }
 
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateBoxes();
                 GetBox(1).CurrentTypeChanged += box => UpdateBoxes();
diff --git a/Source/Editor/Surface/Archetypes/Function.cs b/Source/Editor/Surface/Archetypes/Function.cs
index cffb2ad6f..54b561e4c 100644
--- a/Source/Editor/Surface/Archetypes/Function.cs
+++ b/Source/Editor/Surface/Archetypes/Function.cs
@@ -54,9 +54,9 @@ namespace FlaxEditor.Surface.Archetypes
             protected abstract Asset LoadSignature(Guid id, out string[] types, out string[] names);
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 FlaxEngine.Content.AssetReloading += OnAssetReloading;
                 FlaxEngine.Content.AssetDisposing += OnContentAssetDisposing;
@@ -275,17 +275,17 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 _nameField.Text = SignatureName;
             }
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 // Ensure to have unique name
                 var name = SignatureName;
@@ -397,9 +397,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 _outputBox = GetBox(0);
                 _outputBox.CurrentType = SignatureType;
@@ -466,9 +466,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 _inputBox = GetBox(0);
                 _inputBox.CurrentType = SignatureType;
@@ -634,18 +634,18 @@ namespace FlaxEditor.Surface.Archetypes
             protected override Color FooterColor => new Color(200, 11, 112);
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 Title = SurfaceUtils.GetMethodDisplayName((string)Values[0]);
                 UpdateSignature();
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 // Update the boxes connection types to match the signature
                 // Do it after surface load so connections can receive update on type changes of the method parameter
@@ -663,9 +663,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 var method = GetMethod();
                 _parameters = null;
@@ -999,9 +999,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 var method = GetMethod(out _, out _, out var parameters);
                 if (method && parameters != null)
@@ -1028,18 +1028,18 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 Title = SurfaceUtils.GetMethodDisplayName((string)Values[1]);
                 UpdateSignature();
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 // Update the boxes connection types to match the signature
                 // Do it after surface load so connections can receive update on type changes of the method parameter
@@ -1182,9 +1182,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 UpdateSignature();
             }
@@ -1700,9 +1700,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 LoadSignature();
 
@@ -1715,9 +1715,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 // Setup initial signature
                 var defaultSignature = _signature.Node == null;
@@ -1743,7 +1743,7 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnDeleted()
+            public override void OnDeleted(SurfaceNodeActions action)
             {
                 // Send event
                 for (int i = 0; i < Surface.Nodes.Count; i++)
@@ -1752,7 +1752,7 @@ namespace FlaxEditor.Surface.Archetypes
                         node.OnFunctionDeleted(this);
                 }
 
-                base.OnDeleted();
+                base.OnDeleted(action);
             }
 
             /// <inheritdoc />
@@ -1906,9 +1906,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 Title = "Get " + SurfaceUtils.GetMethodDisplayName((string)Values[1]);
                 UpdateSignature();
@@ -1959,9 +1959,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 Title = "Set " + SurfaceUtils.GetMethodDisplayName((string)Values[1]);
                 UpdateSignature();
@@ -2135,9 +2135,9 @@ namespace FlaxEditor.Surface.Archetypes
                 UpdateUI();
             }
 
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 // Find reflection information about event
                 _signature = null;
@@ -2193,11 +2193,11 @@ namespace FlaxEditor.Surface.Archetypes
             {
             }
 
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
                 Title = "Bind " + (string)Values[1];
 
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
             }
         }
 
@@ -2208,11 +2208,11 @@ namespace FlaxEditor.Surface.Archetypes
             {
             }
 
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
                 Title = "Unbind " + (string)Values[1];
 
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
             }
         }
 
diff --git a/Source/Editor/Surface/Archetypes/Material.cs b/Source/Editor/Surface/Archetypes/Material.cs
index 1a797c67d..b85d1c9d4 100644
--- a/Source/Editor/Surface/Archetypes/Material.cs
+++ b/Source/Editor/Surface/Archetypes/Material.cs
@@ -197,9 +197,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 // Fix emissive box (it's a strange error)
                 GetBox(3).CurrentType = new ScriptType(typeof(Float3));
diff --git a/Source/Editor/Surface/Archetypes/Packing.cs b/Source/Editor/Surface/Archetypes/Packing.cs
index 5a5e9cd5b..0abae2d0b 100644
--- a/Source/Editor/Surface/Archetypes/Packing.cs
+++ b/Source/Editor/Surface/Archetypes/Packing.cs
@@ -30,9 +30,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 _in0 = (InputBox)GetBox(0);
                 _in1 = (InputBox)GetBox(1);
@@ -111,9 +111,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 // Update title and the tooltip
                 var typeName = (string)Values[0];
diff --git a/Source/Editor/Surface/Archetypes/Parameters.cs b/Source/Editor/Surface/Archetypes/Parameters.cs
index c7f343cfb..59987f0aa 100644
--- a/Source/Editor/Surface/Archetypes/Parameters.cs
+++ b/Source/Editor/Surface/Archetypes/Parameters.cs
@@ -426,9 +426,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 if (Surface != null)
                 {
@@ -438,9 +438,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateTitle();
             }
@@ -832,9 +832,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 if (Surface != null)
                     UpdateCombo();
@@ -842,9 +842,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 if (Surface != null)
                 {
diff --git a/Source/Editor/Surface/Archetypes/ParticleModules.cs b/Source/Editor/Surface/Archetypes/ParticleModules.cs
index ad5b45eab..e5be3d35d 100644
--- a/Source/Editor/Surface/Archetypes/ParticleModules.cs
+++ b/Source/Editor/Surface/Archetypes/ParticleModules.cs
@@ -268,20 +268,20 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
                 _enabled.Checked = ModuleEnabled;
                 _enabled.StateChanged += OnEnabledStateChanged;
 
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 ParticleSurface?.ArrangeModulesNodes();
             }
 
             /// <inheritdoc />
-            public override void OnSpawned()
+            public override void OnSpawned(SurfaceNodeActions action)
             {
-                base.OnSpawned();
+                base.OnSpawned(action);
 
                 ParticleSurface.ArrangeModulesNodes();
             }
@@ -295,11 +295,11 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnDeleted()
+            public override void OnDeleted(SurfaceNodeActions action)
             {
                 ParticleSurface.ArrangeModulesNodes();
 
-                base.OnDeleted();
+                base.OnDeleted(action);
             }
 
             /// <inheritdoc />
@@ -324,9 +324,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateOutputBoxType();
             }
@@ -381,9 +381,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateInputBox();
             }
@@ -416,9 +416,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateTextBox();
             }
diff --git a/Source/Editor/Surface/Archetypes/Particles.cs b/Source/Editor/Surface/Archetypes/Particles.cs
index dd861d4af..e49921bec 100644
--- a/Source/Editor/Surface/Archetypes/Particles.cs
+++ b/Source/Editor/Surface/Archetypes/Particles.cs
@@ -214,9 +214,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 if (Surface == null)
                     return;
@@ -265,9 +265,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 UpdateOutputBoxType();
             }
diff --git a/Source/Editor/Surface/Archetypes/Textures.cs b/Source/Editor/Surface/Archetypes/Textures.cs
index 258bfd41a..18c21ecea 100644
--- a/Source/Editor/Surface/Archetypes/Textures.cs
+++ b/Source/Editor/Surface/Archetypes/Textures.cs
@@ -38,9 +38,9 @@ namespace FlaxEditor.Surface.Archetypes
                 UpdateUI();
             }
 
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 UpdateUI();
             }
diff --git a/Source/Editor/Surface/Archetypes/Tools.cs b/Source/Editor/Surface/Archetypes/Tools.cs
index d6c5d8c30..ac7341cd6 100644
--- a/Source/Editor/Surface/Archetypes/Tools.cs
+++ b/Source/Editor/Surface/Archetypes/Tools.cs
@@ -193,9 +193,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 var upperLeft = GetBox(0).BottomLeft;
                 var upperRight = GetBox(1).BottomRight;
@@ -477,9 +477,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 var upperLeft = GetBox(0).BottomLeft;
                 var upperRight = GetBox(1).BottomRight;
@@ -657,9 +657,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 UpdateCombo();
             }
@@ -682,9 +682,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 var type = ScriptType.Null;
                 if (Context.Surface is VisualScriptSurface visjectSurface)
@@ -710,9 +710,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 UpdateOutputBox();
             }
@@ -763,9 +763,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 UpdateOutputBox();
             }
@@ -822,9 +822,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 if (Surface != null)
                     _picker.ValueTypeName = (string)Values[0];
@@ -881,9 +881,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 if (Surface != null)
                     _picker.ValueTypeName = (string)Values[0];
@@ -932,9 +932,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 if (Surface != null)
                     _picker.ValueTypeName = (string)Values[0];
@@ -984,9 +984,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnLoaded()
+            public override void OnLoaded(SurfaceNodeActions action)
             {
-                base.OnLoaded();
+                base.OnLoaded(action);
 
                 if (Surface != null)
                     _picker.ValueTypeName = (string)Values[0];
@@ -1047,9 +1047,9 @@ namespace FlaxEditor.Surface.Archetypes
             }
 
             /// <inheritdoc />
-            public override void OnSurfaceLoaded()
+            public override void OnSurfaceLoaded(SurfaceNodeActions action)
             {
-                base.OnSurfaceLoaded();
+                base.OnSurfaceLoaded(action);
 
                 _input = (InputBox)GetBox(0);
                 _output = (OutputBox)GetBox(1);
diff --git a/Source/Editor/Surface/SurfaceComment.cs b/Source/Editor/Surface/SurfaceComment.cs
index 4256fa17f..ff38b1aa8 100644
--- a/Source/Editor/Surface/SurfaceComment.cs
+++ b/Source/Editor/Surface/SurfaceComment.cs
@@ -59,9 +59,9 @@ namespace FlaxEditor.Surface
         }
 
         /// <inheritdoc />
-        public override void OnSurfaceLoaded()
+        public override void OnSurfaceLoaded(SurfaceNodeActions action)
         {
-            base.OnSurfaceLoaded();
+            base.OnSurfaceLoaded(action);
 
             // Read node data
             Title = TitleValue;
@@ -70,9 +70,9 @@ namespace FlaxEditor.Surface
         }
 
         /// <inheritdoc />
-        public override void OnSpawned()
+        public override void OnSpawned(SurfaceNodeActions action)
         {
-            base.OnSpawned();
+            base.OnSpawned(action);
 
             // Randomize color
             Color = ColorValue = Color.FromHSV(new Random().NextFloat(0, 360), 0.7f, 0.25f, 0.8f);
diff --git a/Source/Editor/Surface/SurfaceControl.cs b/Source/Editor/Surface/SurfaceControl.cs
index 8c207676c..56e2ee8f6 100644
--- a/Source/Editor/Surface/SurfaceControl.cs
+++ b/Source/Editor/Surface/SurfaceControl.cs
@@ -122,14 +122,14 @@ namespace FlaxEditor.Surface
         /// <summary>
         /// Called when control gets loaded and added to surface.
         /// </summary>
-        public virtual void OnLoaded()
+        public virtual void OnLoaded(SurfaceNodeActions action)
         {
         }
 
         /// <summary>
         /// Called when surface gets loaded and nodes boxes are connected.
         /// </summary>
-        public virtual void OnSurfaceLoaded()
+        public virtual void OnSurfaceLoaded(SurfaceNodeActions action)
         {
             UpdateRectangles();
         }
@@ -137,14 +137,14 @@ namespace FlaxEditor.Surface
         /// <summary>
         /// Called after adding the control to the surface after user spawn (eg. add comment, add new node, etc.).
         /// </summary>
-        public virtual void OnSpawned()
+        public virtual void OnSpawned(SurfaceNodeActions action)
         {
         }
 
         /// <summary>
         /// Called on removing the control from the surface after user delete/cut operation (eg. delete comment, cut node, etc.).
         /// </summary>
-        public virtual void OnDeleted()
+        public virtual void OnDeleted(SurfaceNodeActions action)
         {
             Dispose();
         }
diff --git a/Source/Editor/Surface/SurfaceNode.cs b/Source/Editor/Surface/SurfaceNode.cs
index 1ebc1c1c5..4f628b6af 100644
--- a/Source/Editor/Surface/SurfaceNode.cs
+++ b/Source/Editor/Surface/SurfaceNode.cs
@@ -884,9 +884,9 @@ namespace FlaxEditor.Surface
         }
 
         /// <inheritdoc />
-        public override void OnSurfaceLoaded()
+        public override void OnSurfaceLoaded(SurfaceNodeActions action)
         {
-            base.OnSurfaceLoaded();
+            base.OnSurfaceLoaded(action);
 
             UpdateBoxesTypes();
 
@@ -898,11 +898,11 @@ namespace FlaxEditor.Surface
         }
 
         /// <inheritdoc />
-        public override void OnDeleted()
+        public override void OnDeleted(SurfaceNodeActions action)
         {
             RemoveConnections();
 
-            base.OnDeleted();
+            base.OnDeleted(action);
         }
 
         /// <summary>
diff --git a/Source/Editor/Surface/Undo/AddRemoveNodeAction.cs b/Source/Editor/Surface/Undo/AddRemoveNodeAction.cs
index b529ea3c0..ba6770287 100644
--- a/Source/Editor/Surface/Undo/AddRemoveNodeAction.cs
+++ b/Source/Editor/Surface/Undo/AddRemoveNodeAction.cs
@@ -67,8 +67,8 @@ namespace FlaxEditor.Surface.Undo
             else if (_nodeValues != null && _nodeValues.Length != 0)
                 throw new InvalidOperationException("Invalid node values.");
             node.Location = _nodeLocation;
-            context.OnControlLoaded(node);
-            node.OnSurfaceLoaded();
+            context.OnControlLoaded(node, SurfaceNodeActions.Undo);
+            node.OnSurfaceLoaded(SurfaceNodeActions.Undo);
 
             context.MarkAsModified();
         }
@@ -89,7 +89,7 @@ namespace FlaxEditor.Surface.Undo
 
             // Remove node
             context.Nodes.Remove(node);
-            context.OnControlDeleted(node);
+            context.OnControlDeleted(node, SurfaceNodeActions.Undo);
 
             context.MarkAsModified();
         }
diff --git a/Source/Editor/Surface/VisjectSurface.CopyPaste.cs b/Source/Editor/Surface/VisjectSurface.CopyPaste.cs
index 7df90f298..fd27315e6 100644
--- a/Source/Editor/Surface/VisjectSurface.CopyPaste.cs
+++ b/Source/Editor/Surface/VisjectSurface.CopyPaste.cs
@@ -373,7 +373,7 @@ namespace FlaxEditor.Surface
                         }
                     }
 
-                    Context.OnControlLoaded(node);
+                    Context.OnControlLoaded(node, SurfaceNodeActions.Paste);
                 }
 
                 // Setup connections
@@ -413,11 +413,11 @@ namespace FlaxEditor.Surface
                 // Post load
                 foreach (var node in nodes)
                 {
-                    node.Value.OnSurfaceLoaded();
+                    node.Value.OnSurfaceLoaded(SurfaceNodeActions.Paste);
                 }
                 foreach (var node in nodes)
                 {
-                    node.Value.OnSpawned();
+                    node.Value.OnSpawned(SurfaceNodeActions.Paste);
                 }
 
                 // Add undo action
diff --git a/Source/Editor/Surface/VisjectSurface.cs b/Source/Editor/Surface/VisjectSurface.cs
index 012d98778..2b965dfbb 100644
--- a/Source/Editor/Surface/VisjectSurface.cs
+++ b/Source/Editor/Surface/VisjectSurface.cs
@@ -772,7 +772,7 @@ namespace FlaxEditor.Surface
                 }
                 else
                 {
-                    Context.OnControlDeleted(control);
+                    Context.OnControlDeleted(control, SurfaceNodeActions.User);
                 }
             }
             if (selectionChanged)
@@ -787,7 +787,7 @@ namespace FlaxEditor.Surface
                     {
                         node.RemoveConnections();
                         Nodes.Remove(node);
-                        Context.OnControlDeleted(node);
+                        Context.OnControlDeleted(node, SurfaceNodeActions.User);
                     }
                 }
                 else
diff --git a/Source/Editor/Surface/VisjectSurfaceContext.Serialization.cs b/Source/Editor/Surface/VisjectSurfaceContext.Serialization.cs
index f2059c581..7d75e006b 100644
--- a/Source/Editor/Surface/VisjectSurfaceContext.Serialization.cs
+++ b/Source/Editor/Surface/VisjectSurfaceContext.Serialization.cs
@@ -13,6 +13,32 @@ using Utils = FlaxEditor.Utilities.Utils;
 
 namespace FlaxEditor.Surface
 {
+    /// <summary>
+    /// Types of surface actions.
+    /// </summary>
+    public enum SurfaceNodeActions
+    {
+        /// <summary>
+        /// Node has been created by surface load.
+        /// </summary>
+        Load,
+
+        /// <summary>
+        /// Node has been created/deleted by user action.
+        /// </summary>
+        User,
+
+        /// <summary>
+        /// Node has been created/deleted via undo.
+        /// </summary>
+        Undo,
+
+        /// <summary>
+        /// Node has been pasted.
+        /// </summary>
+        Paste,
+    }
+
     /// <summary>
     /// The missing node. Cached the node group, type and stored values information.
     /// </summary>
@@ -135,7 +161,7 @@ namespace FlaxEditor.Surface
                             if (comment == null)
                                 throw new InvalidOperationException("Failed to create comment.");
 
-                            OnControlLoaded(comment);
+                            OnControlLoaded(comment, SurfaceNodeActions.Load);
                         }
                     }
                 }
@@ -144,7 +170,7 @@ namespace FlaxEditor.Surface
                 for (int i = 0; i < RootControl.Children.Count; i++)
                 {
                     if (RootControl.Children[i] is SurfaceControl control)
-                        control.OnSurfaceLoaded();
+                        control.OnSurfaceLoaded(SurfaceNodeActions.Load);
                 }
 
                 RootControl.UnlockChildrenRecursive();
@@ -650,7 +676,7 @@ namespace FlaxEditor.Surface
                     // Meta
                     node.Meta.Load(stream);
 
-                    OnControlLoaded(node);
+                    OnControlLoaded(node, SurfaceNodeActions.Load);
                 }
             }
             else if (version == 7000)
@@ -813,7 +839,7 @@ namespace FlaxEditor.Surface
                     // Meta
                     node.Meta.Load(stream);
 
-                    OnControlLoaded(node);
+                    OnControlLoaded(node, SurfaceNodeActions.Load);
                 }
             }
             else
@@ -856,9 +882,10 @@ namespace FlaxEditor.Surface
         /// Called when control gets added to the surface as spawn operation (eg. add new comment or add new node).
         /// </summary>
         /// <param name="control">The control.</param>
-        public virtual void OnControlSpawned(SurfaceControl control)
+        /// <param name="action">The action node.</param>
+        public virtual void OnControlSpawned(SurfaceControl control, SurfaceNodeActions action)
         {
-            control.OnSpawned();
+            control.OnSpawned(action);
             ControlSpawned?.Invoke(control);
             if (Surface != null && control is SurfaceNode node)
                 Surface.OnNodeSpawned(node);
@@ -868,10 +895,11 @@ namespace FlaxEditor.Surface
         /// Called when control gets removed from the surface as delete/cut operation (eg. remove comment or cut node).
         /// </summary>
         /// <param name="control">The control.</param>
-        public virtual void OnControlDeleted(SurfaceControl control)
+        /// <param name="action">The action node.</param>
+        public virtual void OnControlDeleted(SurfaceControl control, SurfaceNodeActions action)
         {
             ControlDeleted?.Invoke(control);
-            control.OnDeleted();
+            control.OnDeleted(action);
             if (control is SurfaceNode node)
                 Surface.OnNodeDeleted(node);
         }
@@ -880,16 +908,17 @@ namespace FlaxEditor.Surface
         /// Called when control gets loaded and should be added to the surface. Handles surface nodes initialization.
         /// </summary>
         /// <param name="control">The control.</param>
-        public virtual void OnControlLoaded(SurfaceControl control)
+        /// <param name="action">The action node.</param>
+        public virtual void OnControlLoaded(SurfaceControl control, SurfaceNodeActions action)
         {
             if (control is SurfaceNode node)
             {
                 // Initialize node
-                OnNodeLoaded(node);
+                OnNodeLoaded(node, action);
             }
 
             // Link control
-            control.OnLoaded();
+            control.OnLoaded(action);
             control.Parent = RootControl;
 
             if (control is SurfaceComment)
@@ -903,7 +932,8 @@ namespace FlaxEditor.Surface
         /// Called when node gets loaded and should be added to the surface. Creates node elements from the archetype.
         /// </summary>
         /// <param name="node">The node.</param>
-        public virtual void OnNodeLoaded(SurfaceNode node)
+        /// <param name="action">The action node.</param>
+        public virtual void OnNodeLoaded(SurfaceNode node, SurfaceNodeActions action)
         {
             // Create child elements of the node based on it's archetype
             int elementsCount = node.Archetype.Elements?.Length ?? 0;
diff --git a/Source/Editor/Surface/VisjectSurfaceContext.cs b/Source/Editor/Surface/VisjectSurfaceContext.cs
index 1c8754325..36e811c48 100644
--- a/Source/Editor/Surface/VisjectSurfaceContext.cs
+++ b/Source/Editor/Surface/VisjectSurfaceContext.cs
@@ -315,9 +315,9 @@ namespace FlaxEditor.Surface
             }
 
             // Initialize
-            OnControlLoaded(comment);
-            comment.OnSurfaceLoaded();
-            OnControlSpawned(comment);
+            OnControlLoaded(comment, SurfaceNodeActions.User);
+            comment.OnSurfaceLoaded(SurfaceNodeActions.User);
+            OnControlSpawned(comment, SurfaceNodeActions.User);
 
             MarkAsModified();
 
@@ -389,10 +389,10 @@ namespace FlaxEditor.Surface
                     throw new InvalidOperationException("Invalid node custom values.");
             }
             node.Location = location;
-            OnControlLoaded(node);
+            OnControlLoaded(node, SurfaceNodeActions.User);
             beforeSpawned?.Invoke(node);
-            node.OnSurfaceLoaded();
-            OnControlSpawned(node);
+            node.OnSurfaceLoaded(SurfaceNodeActions.User);
+            OnControlSpawned(node, SurfaceNodeActions.User);
 
             // Undo action
             if (Surface != null)
diff --git a/Source/Editor/Windows/AssetReferencesGraphWindow.cs b/Source/Editor/Windows/AssetReferencesGraphWindow.cs
index de5b86f96..d49896e2e 100644
--- a/Source/Editor/Windows/AssetReferencesGraphWindow.cs
+++ b/Source/Editor/Windows/AssetReferencesGraphWindow.cs
@@ -127,9 +127,9 @@ namespace FlaxEditor.Windows
                 Nodes.AddRange(nodes);
                 foreach (var node in nodes)
                 {
-                    Context.OnControlLoaded(node);
-                    node.OnSurfaceLoaded();
-                    Context.OnControlSpawned(node);
+                    Context.OnControlLoaded(node, SurfaceNodeActions.Load);
+                    node.OnSurfaceLoaded(SurfaceNodeActions.Load);
+                    Context.OnControlSpawned(node, SurfaceNodeActions.Load);
                 }
                 ShowWholeGraph();
                 UnlockChildrenRecursive();