diff --git a/Rs.Controls/RsTray.cs b/Rs.Controls/RsTray.cs
index fe601b8..d3013ac 100644
--- a/Rs.Controls/RsTray.cs
+++ b/Rs.Controls/RsTray.cs
@@ -543,10 +543,23 @@ namespace Rs.Controls
                 panel2_Paint(null, null);
             }
         }
-
+        private List<TraySlot> drawSlots = new List<TraySlot>();
         private void panel2_MouseUp(object sender, MouseEventArgs e)
         {
             drawRegion = false;
+            drawSlots.Clear();
+            foreach (KeyValuePair<int, TraySlot> kvSlot in traySlotsDic)
+            {
+                if (drawRect.IntersectsWith(kvSlot.Value.Bound))
+                {
+                    drawSlots.Add(kvSlot.Value);
+                }
+            }
+        }
+
+        public List<TraySlot> GetDrawSlots()
+        {
+            return drawSlots;
         }
 
         public TraySlot SelectSlot { get; set; }