Assets/Prefabs/UI/Hierarchy.prefab

@@ -612,6 +612,14 @@ PrefabInstance:
       propertyPath: m_Size
       value: 1
       objectReference: {fileID: 0}
+    - target: {fileID: 3692082455671801088, guid: c7fa5154df436e54bb0b444dfc25575d, type: 3}
+      propertyPath: isDraggable
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: 3692082455671801088, guid: c7fa5154df436e54bb0b444dfc25575d, type: 3}
+      propertyPath: isSiblingEditable
+      value: 1
+      objectReference: {fileID: 0}
     - target: {fileID: 3853414527505018043, guid: c7fa5154df436e54bb0b444dfc25575d, type: 3}
       propertyPath: m_AnchorMax.x
       value: 1
@@ -658,7 +666,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 4494893725557815844, guid: c7fa5154df436e54bb0b444dfc25575d, type: 3}
       propertyPath: m_Value
-      value: 1
+      value: 1.0000204
       objectReference: {fileID: 0}
     - target: {fileID: 5185907358101567880, guid: c7fa5154df436e54bb0b444dfc25575d, type: 3}
       propertyPath: m_Maskable

Assets/Scripts/Studio/UI/TreeView/CustomScrollRect.cs

@@ -24,6 +24,11 @@ namespace XED.Hierarchy
         private Coroutine coroutinePendPopup;
         public override void OnBeginDrag(PointerEventData eventData)
         {
+            ScrollItemUI itemUI = GetTargetItemUI(eventData);
+            if (itemUI != null && !itemUI.isSelected)
+            {
+                itemUI.OnPointerClick(eventData);
+            }             
             onDragBegin?.Invoke(sourceItem);
             if (!passDragToChildren)
             {

Assets/Scripts/Studio/UI/TreeView/PooledScrollView.cs

@@ -35,6 +35,9 @@ namespace XED.Hierarchy
 
         public UnityEvent<List<HierarchyItem>> onSelect;
         public UnityEvent<HierarchyItem, HierarchyItem> onParentChanged;
+
+        public bool isSiblingEditable;
+
         private void Awake()
         {
             content = UtilityFunction.FindDeepChild(transform, "Content").GetComponent<RectTransform>();
@@ -331,7 +334,7 @@ namespace XED.Hierarchy
         }
         public void SetToChildItem(HierarchyItem srcItem, HierarchyItem destItem)
         {
-            if (srcItem == null || destItem == null)
+            if (srcItem == null || destItem == null || !isSiblingEditable)
                 return;
             if (selectedItems.Contains(srcItem))
             {
@@ -384,7 +387,7 @@ namespace XED.Hierarchy
         }
         public void SetToNextSiblingItem(HierarchyItem srcItem, HierarchyItem destItem)
         {
-            if (srcItem == null || destItem == null)
+            if (srcItem == null || destItem == null || !isSiblingEditable)
                 return;
             if (selectedItems.Contains(srcItem))
             {
@@ -437,7 +440,7 @@ namespace XED.Hierarchy
         }
         public void SetToPriorSiblingItem(HierarchyItem srcItem, HierarchyItem destItem)
         {
-            if (srcItem == null || destItem == null)
+            if (srcItem == null || destItem == null || !isSiblingEditable)
                 return;
             if (selectedItems.Contains(srcItem))
             {

Assets/Scripts/Studio/UI/TreeView/ScrollItemUI.cs

@@ -33,6 +33,7 @@ namespace XED.Hierarchy
         public GameObject highLight;
         public List<HierarchyItemSprite> itemSprites;
         private Image backgroundImage;
+        public bool isSelected;
         private void Awake()
         {
             backgroundImage = GetComponent<Image>();
@@ -69,7 +70,8 @@ namespace XED.Hierarchy
         }
         public void SetSelected(bool selected)
         {
-            if (selected)
+            isSelected = selected;
+            if (isSelected)
             {
                 backgroundImage.color = selectedColor;
             }
@@ -80,7 +82,8 @@ namespace XED.Hierarchy
         }
         public void SetSelected(List<HierarchyItem> selectedItems)
         {
-              if (selectedItems.Contains(currentItem))
+            isSelected = selectedItems.Contains(currentItem);
+            if (isSelected)
             {
                 backgroundImage.color = selectedColor;
             }