diff --git a/DeedyDesigner/Deedy.Activity/ActionViewer.cs b/DeedyDesigner/Deedy.Activity/ActionViewer.cs
index 59b87ac..944f968 100644
--- a/DeedyDesigner/Deedy.Activity/ActionViewer.cs
+++ b/DeedyDesigner/Deedy.Activity/ActionViewer.cs
@@ -554,33 +554,28 @@ namespace Deedy.Activity
                     this.IsSelectable = true;
                 }
 
-                if (newValue is ICombinedElement newCombinedElement)
+                if (newValue is ICombinedElement newCombined)
                 {
                     this.IsExpandable = true;
-                    this.ElementCount = newCombinedElement.Elements.Count;
-                    newCombinedElement.Elements.CollectionChanged += Elements_CollectionChanged;
+                    this.ElementCount = newCombined.Elements.Count;
+                    newCombined.Elements.CollectionChanged += Elements_CollectionChanged;
                 }
                 else this.IsExpandable = false;
 
-                if (newValue is ICriticalZoneManageable criticalZoneManageable)
+                if (newValue is ICriticalZoneManageable criticalZone)
                 {
-                    if (criticalZoneManageable.IsLeaveZoneHidden) this.ShowLeaveZone = Visibility.Collapsed;
-                    if (criticalZoneManageable.IsEntryZoneHidden) this.ShowEntryZone = Visibility.Collapsed;
+                    if (criticalZone.IsLeaveZoneHidden) this.ShowLeaveZone = Visibility.Collapsed;
+                    if (criticalZone.IsEntryZoneHidden) this.ShowEntryZone = Visibility.Collapsed;
                 }
 
-                if (newValue is IExitlineManageable exitlinemanageable)
+                if (newValue is IContainerWithExitline withExitline)
                 {
-                    if ((exitlinemanageable.ExitlinePosition & ExitlinePosition.LeftLower) == ExitlinePosition.LeftLower)
+                    if (withExitline.ExitlinePosition.HasFlag(ExitlinePosition.LeftLower))
                         this.ShowLeftExitline = Visibility.Visible;
-                    else if ((exitlinemanageable.ExitlinePosition & ExitlinePosition.Rightlower) == ExitlinePosition.Rightlower)
+                    if (withExitline.ExitlinePosition.HasFlag(ExitlinePosition.Rightlower))
                         this.ShowRightExitline = Visibility.Visible;
-                    else if ((exitlinemanageable.ExitlinePosition & ExitlinePosition.Underline) == ExitlinePosition.Underline)
-                    {
-                        this.ShowLeftExitline = Visibility.Visible;
-                        this.ShowRightExitline = Visibility.Visible;
-                    }
-
-                    this.ActionElement.AdjustExitlinePosition();
+                    // 新元素被托管渲染后调整子元素退出线位置
+                    withExitline.AdjustExitlinePosition();
                 }
                 if (newValue is ILogicController logicController)
                 {
@@ -591,8 +586,7 @@ namespace Deedy.Activity
                         case LogicalBehavior.Break: this.ShowBreakHandle = Visibility.Visible; break;
                         case LogicalBehavior.Continue: this.ShowContinueHandle = Visibility.Visible; break;
                         case LogicalBehavior.Customize: this.ShowCustomizeHandle = Visibility.Visible; break;
-                        default:
-                            break;
+                        default: break;
                     }
                 }
                 //TODO：根据节点的特征与当前工作状态来判定如何处理当前视图的属性
@@ -607,6 +601,8 @@ namespace Deedy.Activity
                     this.IsExpanded = true;
                 this.ElementCount = combined.Elements.Count;
             }
+            // 节点集合变更时调整退出线位置
+            if (this.ActionElement is IContainerWithExitline container) container.AdjustExitlinePosition();
         }
 
         protected virtual void ActionElement_PropertyChanged(object? sender, PropertyChangedEventArgs e)
@@ -617,8 +613,9 @@ namespace Deedy.Activity
                 case nameof(IActionElement.InstantInfo):
                     this.InstantInfo = this.ActionElement.InstantInfo;
                     break;
-                case nameof(IExitlineManageable):
-                    this.ActionElement.AdjustExitlinePosition();
+                case nameof(IContainerWithExitline.ExitlinePosition):
+                    // 自身退出线变更时调整所有子节点退出线位置
+                    (this.ActionElement as IContainerWithExitline)?.AdjustExitlinePosition();
                     break;
                 default: break;
             }
diff --git a/DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerElement.cs b/DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerElement.cs
index cc9c180..218d431 100644
--- a/DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerElement.cs
+++ b/DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerElement.cs
@@ -17,6 +17,14 @@ namespace Deedy.Activity
             if (index < this.Elements.Count) this.Elements.Insert((int)index, element);
             if (index >= this.Elements.Count) this.Elements.Add(element);
         }
+        public void MoveTo(IElement element, uint index)
+        {
+            if (element == null) return;
+            int newIndex = (index >= this.Elements.Count) ? this.Elements.Count - 1 : (int)index;
+            int oldIndex = this.Elements.IndexOf(element);
+            if (oldIndex < 0) this.Elements.Insert(newIndex, element);
+            else this.Elements.Move(oldIndex, newIndex);
+        }
         /// <summary>
         /// 如果类型上没有组装规则，则认为不允许组装，否则按照组装规则处理
         /// </summary>
diff --git a/DeedyDesigner/Deedy.Activity/Contract/Interface/IExitlineManageable.cs b/DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerWithExitline.cs
similarity index 77%
rename from DeedyDesigner/Deedy.Activity/Contract/Interface/IExitlineManageable.cs
rename to DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerWithExitline.cs
index 57ae6ce..76b3bc5 100644
--- a/DeedyDesigner/Deedy.Activity/Contract/Interface/IExitlineManageable.cs
+++ b/DeedyDesigner/Deedy.Activity/Contract/Interface/IContainerWithExitline.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace Deedy.Activity
 {
-    public interface IExitlineManageable
+    public interface IContainerWithExitline : IContainerElement, IActionElement
     {
         ExitlinePosition ExitlinePosition { get; set; }
         bool? IsExitlineAtSamePosition { get; set; }
diff --git a/DeedyDesigner/Deedy.Activity/Helper.cs b/DeedyDesigner/Deedy.Activity/Helper.cs
index ae2b399..e728369 100644
--- a/DeedyDesigner/Deedy.Activity/Helper.cs
+++ b/DeedyDesigner/Deedy.Activity/Helper.cs
@@ -212,20 +212,32 @@ namespace Deedy.Activity
 
             return default;
         }
-        public static void AdjustExitlinePosition(this IActionElement element)
+        public static void AdjustExitlinePosition(this IContainerWithExitline container)
         {
-            if (element is IExitlineManageable exitlineManageable
-                && (exitlineManageable.ExitlinePosition == ExitlinePosition.LeftLower
-                || exitlineManageable.ExitlinePosition == ExitlinePosition.Rightlower))
+            if (container != null
+                && (container.ExitlinePosition == ExitlinePosition.LeftLower
+                || container.ExitlinePosition == ExitlinePosition.Rightlower))
             {
-                //TODO：根据退出线方向是否相同的设置项调整子节点的退出线位置
-                if (exitlineManageable.IsExitlineAtSamePosition == true)
+                var lastChild = container.Elements[container.Elements.Count - 1] as IContainerWithExitline;
+                if (lastChild != null
+                    && (lastChild.ExitlinePosition == ExitlinePosition.LeftLower
+                    || lastChild.ExitlinePosition == ExitlinePosition.Rightlower))
                 {
-                    //TODO：同向退出线控制
-                }
-                if (exitlineManageable.IsExitlineAtSamePosition == false)
-                {
-                    //TODO：对向退出线控制
+                    if (container.IsExitlineAtSamePosition == true)
+                    {
+                        if (container.ExitlinePosition == ExitlinePosition.LeftLower)
+                            lastChild.ExitlinePosition = ExitlinePosition.LeftLower;
+                        if (container.ExitlinePosition == ExitlinePosition.Rightlower)
+                            lastChild.ExitlinePosition = ExitlinePosition.Rightlower;
+                    }
+                    if (container.IsExitlineAtSamePosition == false)
+                    {
+                        if (container.ExitlinePosition == ExitlinePosition.LeftLower)
+                            lastChild.ExitlinePosition = ExitlinePosition.LeftLower;
+                        if (container.ExitlinePosition == ExitlinePosition.Rightlower)
+                            lastChild.ExitlinePosition = ExitlinePosition.Rightlower;
+                    }
+                    //lastChild.AdjustExitlinePosition();
                 }
             }
         }