diff --git a/.DS_Store b/.DS_Store
index ebeee33..8e31241 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/Assets/Darkmatter/Code/Editor.meta b/Assets/Darkmatter/Code/Editor.meta
new file mode 100644
index 0000000..c127179
--- /dev/null
+++ b/Assets/Darkmatter/Code/Editor.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 2a01b1f301d474e39808b73160a98677
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Darkmatter/Code/Editor/AddSelectedPrefabToPaperRoot.cs b/Assets/Darkmatter/Code/Editor/AddSelectedPrefabToPaperRoot.cs
new file mode 100644
index 0000000..8d11e3a
--- /dev/null
+++ b/Assets/Darkmatter/Code/Editor/AddSelectedPrefabToPaperRoot.cs
@@ -0,0 +1,78 @@
+using UnityEditor;
+using UnityEditor.SceneManagement;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace Darkmatter.EditorTools
+{
+    public static class AddSelectedPrefabToPaperRoot
+    {
+        [MenuItem("Tools/Colorbook/Add Selected Prefab To PaperRoot")]
+        private static void AddSelected()
+        {
+            var prefab = Selection.activeObject as GameObject;
+            if (prefab == null || PrefabUtility.GetPrefabAssetType(prefab) == PrefabAssetType.NotAPrefab)
+            {
+                EditorUtility.DisplayDialog(
+                    "Select a prefab",
+                    "Select a drawing, coloring, or animation prefab in the Project window first.",
+                    "OK");
+                return;
+            }
+
+            var paperRoot = FindPaperRoot();
+            if (paperRoot == null)
+            {
+                EditorUtility.DisplayDialog(
+                    "PaperRoot not found",
+                    "Open the Gameplay scene and make sure it contains an object named PaperRoot.",
+                    "OK");
+                return;
+            }
+
+            var instance = PrefabUtility.InstantiatePrefab(prefab, paperRoot.scene) as GameObject;
+            if (instance == null) return;
+
+            Undo.RegisterCreatedObjectUndo(instance, $"Add {prefab.name} to PaperRoot");
+            Undo.SetTransformParent(instance.transform, paperRoot.transform, "Parent prefab to PaperRoot");
+
+            if (instance.transform is RectTransform rectTransform)
+            {
+                rectTransform.anchorMin = Vector2.zero;
+                rectTransform.anchorMax = Vector2.one;
+                rectTransform.anchoredPosition = Vector2.zero;
+                rectTransform.sizeDelta = Vector2.zero;
+                rectTransform.localScale = Vector3.one;
+            }
+            else
+            {
+                instance.transform.localPosition = Vector3.zero;
+                instance.transform.localRotation = Quaternion.identity;
+                instance.transform.localScale = Vector3.one;
+            }
+
+            Selection.activeGameObject = instance;
+            EditorSceneManager.MarkSceneDirty(paperRoot.scene);
+        }
+
+        [MenuItem("Tools/Colorbook/Add Selected Prefab To PaperRoot", true)]
+        private static bool ValidateAddSelected()
+        {
+            return !EditorApplication.isPlayingOrWillChangePlaymode;
+        }
+
+        private static GameObject FindPaperRoot()
+        {
+            var activeScene = SceneManager.GetActiveScene();
+            foreach (var root in activeScene.GetRootGameObjects())
+            {
+                var transforms = root.GetComponentsInChildren<Transform>(true);
+                foreach (var candidate in transforms)
+                    if (candidate.name == "PaperRoot")
+                        return candidate.gameObject;
+            }
+
+            return null;
+        }
+    }
+}
diff --git a/Assets/Darkmatter/Code/Editor/AddSelectedPrefabToPaperRoot.cs.meta b/Assets/Darkmatter/Code/Editor/AddSelectedPrefabToPaperRoot.cs.meta
new file mode 100644
index 0000000..790f5cc
--- /dev/null
+++ b/Assets/Darkmatter/Code/Editor/AddSelectedPrefabToPaperRoot.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 675d955c682824cd9904fb2e96517df1
\ No newline at end of file
diff --git a/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs b/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs
index d7a8aef..e1b6b83 100644
--- a/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs
+++ b/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs
@@ -379,7 +379,6 @@ namespace Spine.Unity.Editor {
 				var eventType = current.type;
 				bool isDraggingEvent = eventType == EventType.DragUpdated;
 				bool isDropEvent = eventType == EventType.DragPerform;
-				UnityEditor.DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
 
 				if (isDraggingEvent || isDropEvent) {
 					var mouseOverWindow = EditorWindow.mouseOverWindow;
@@ -390,6 +389,7 @@ namespace Spine.Unity.Editor {
 						if (references.Length == 1) {
 							var skeletonDataAsset = references[0] as SkeletonDataAsset;
 							if (skeletonDataAsset != null && skeletonDataAsset.GetSkeletonData(true) != null) {
+								UnityEditor.DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
 
 								// Allow drag-and-dropping anywhere in the Hierarchy Window.
 								// HACK: string-compare because we can't get its type via reflection.