Assets/Scripts/Studio/Command/CreateConnectedAssetCommand.cs

@@ -45,7 +45,7 @@ namespace Studio.Command
 
             var renderObjectHandler = ManagerHub.instance.Get<RenderObjectHandler>();
             renderObjectHandler.rtgController.SetGizmoTargetObjects(new List<GameObject>());
-
+            renderObjectHandler.DeselectAll();
         }
     }
 

Assets/Scripts/Studio/Command/ObjectCommand/CopyObjectCommand.cs

@@ -143,6 +143,8 @@ namespace Studio.Command
             canvas.panel_dynamicobjectinfo.ResetObjectInfo();
             //connector.onRemoveObjects?.Invoke();
             connector.componentScrollView.DeselectAll();
+            var renderObjectHandler = ManagerHub.instance.Get<RenderObjectHandler>();
+            renderObjectHandler.DeselectAll();
         }
     }
 

Assets/Scripts/Studio/Managers/UserInputManager.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using TMPro;
+using UnityEditor.ShortcutManagement;
 using UnityEngine;
 using UnityEngine.EventSystems;
 using XRLib;
@@ -14,9 +15,20 @@ namespace Studio.Manage
         Dictionary<KeyCode, Action> upKeyActionTable = new Dictionary<KeyCode, Action>();
         Dictionary<KeyCode, Action> downKeyActionTable = new Dictionary<KeyCode, Action>();
         Dictionary<KeyCode, Dictionary<KeyCode, Action>> shortCutActionTable = new();
+        Dictionary<string, ShortcutState> shortcutStateTable = new Dictionary<string, ShortcutState>();
+
+        float shortCutInitialDelay = 0.5f;
+        float shortCutRepeatDelay = 0.1f;
+
         Stack<InputHandler> handlerStack = new();
         Action updateLoop;
 
+        private class ShortcutState
+        {
+            public float pressStartTime = -1f;     
+            public float lastActionTime = -1f; 
+        }
+
         public void SetHandler(InputHandler handler)
         {
             SetKeyboardPreset(handler);
@@ -143,18 +155,53 @@ namespace Studio.Manage
                     {
                         foreach (var k in kk)
                         {
-                            if (Input.GetKeyDown(k.Key))
+                            string inputKeystring = key + "+" + k.Key;
+                            bool bothKeyPressed = Input.GetKey(k.Key);
+
+                            if (!shortcutStateTable.TryGetValue(inputKeystring, out var state))
+                            {
+                                state = new ShortcutState();
+                                shortcutStateTable[inputKeystring] = state;
+                            }
+
+                            if (bothKeyPressed)
+                            {
+                                float curTime = Time.time;
+
+                                if (state.pressStartTime < 0f)
+                                {
+                                    state.pressStartTime = curTime;
+                                    state.lastActionTime = -1f;
+                                }
+
+                                if (state.lastActionTime < 0f)
                                 {
                                     k.Value?.Invoke();
+                                    state.lastActionTime = curTime;
                                 }
-                        }
+                                else
-                    }
+                                {
-                }
+                                    float holdTime = curTime - state.pressStartTime;
-            }
+                                    float sinceLastAction = curTime - state.lastActionTime;
 
+                                    if (holdTime >= shortCutInitialDelay && sinceLastAction >= shortCutRepeatDelay)
+                                    {
+                                        k.Value?.Invoke();
+                                        state.lastActionTime = curTime;
+                                    }
+                                }
+                            }
+                            else
+                            {
+                                state.pressStartTime = -1f;
+                                state.lastActionTime = -1f;
+                            }
+                        }
+                    }
+                }
+            }
             updateLoop?.Invoke();
         }
-
         bool IsEditInputField()
         {
             GameObject selectedObj = EventSystem.current.currentSelectedGameObject;
@@ -165,4 +212,5 @@ namespace Studio.Manage
             return selectedObj.GetComponent<TMP_InputField>() != null;
         }
     }
+    
 }