diff --git a/Assets/UnityScreenNavigator/Runtime/Core/Shared/Animation/SimpleTransitionAnimationObject.cs b/Assets/UnityScreenNavigator/Runtime/Core/Shared/Animation/SimpleTransitionAnimationObject.cs
index 6cf14fb..22d14dd 100644
--- a/Assets/UnityScreenNavigator/Runtime/Core/Shared/Animation/SimpleTransitionAnimationObject.cs
+++ b/Assets/UnityScreenNavigator/Runtime/Core/Shared/Animation/SimpleTransitionAnimationObject.cs
@@ -120,8 +120,12 @@ public async UniTask SetTime(CancellationToken cancellationToken)
 
             await _sequence.AwaitForComplete(cancellationToken: cancellationToken);
 
-            _canvasGroup.interactable = _canvasGroupInteractable;
-            _canvasGroup.blocksRaycasts = _canvasGroupBlockRaycast;
+            if (_canvasGroup != null)
+            {
+                _canvasGroup.interactable = _canvasGroupInteractable;
+                _canvasGroup.blocksRaycasts = _canvasGroupBlockRaycast;
+            }
+            
         }
 
         public void SetParams(float? duration = null, Ease? easeType = null, SheetAlignment? beforeAlignment = null,
diff --git a/Assets/UnityScreenNavigator/Runtime/Core/Shared/Utils.cs b/Assets/UnityScreenNavigator/Runtime/Core/Shared/Utils.cs
new file mode 100644
index 0000000..dd241f2
--- /dev/null
+++ b/Assets/UnityScreenNavigator/Runtime/Core/Shared/Utils.cs
@@ -0,0 +1,127 @@
+using System;
+using System.Threading;
+using Cysharp.Threading.Tasks;
+using UnityScreenNavigator.Runtime.Core.Modal;
+using UnityScreenNavigator.Runtime.Core.Screen;
+using UnityScreenNavigator.Runtime.Core.Shared.Views;
+using UnityScreenNavigator.Runtime.Interactivity;
+
+namespace UnityScreenNavigator.Runtime.Core.Shared
+{
+    public static class Utils
+    {
+        // public static async UniTask ShowToastForLocStr(LocalizedString locStr, float duration = 3F, Action callback = null)
+        // {
+        //     if (locStr is null)
+        //         return;
+        //
+        //     var str = await locStr.GetLocalizedStringAsync();
+        //
+        //     await Toast.Show(str, duration, null, callback);
+        // }
+        //
+        // public static async UniTask<Toast> ShowToastForLocStrFormat<T>(
+        //     LocalizedString locStr, 
+        //     T formatParam, 
+        //     float duration = 3F, 
+        //     Action callback = null, 
+        //     CancellationToken cancellationToken = default)
+        // {
+        //     var str = locStr is not null ? await locStr.GetLocalizedStringAsync() : string.Empty;
+        //
+        //     var toast = await Toast.Show(StringUtils.Format(str, formatParam), duration, null, callback, cancellationToken);
+        //
+        //     return toast;
+        // }
+    
+        public static UniTask PopScreen(string container, bool playAnim = true)
+        {
+            var screenContainer = ScreenContainer.Find(container);
+    
+            UniTask res = UniTask.CompletedTask; 
+            
+            if (screenContainer.IsInTransition)
+                res = UniTask.WaitUntil(() => !screenContainer.IsInTransition);
+    
+            return res.ContinueWith(() => screenContainer.Pop(playAnim));
+    
+        }
+    
+        public static UniTask PopModal(string containeStr, bool playAnim = true)
+        {
+            var container = ModalContainer.Find(containeStr);
+    
+            return container.Pop(playAnim);
+    
+        }
+        public static UniTask<Modal.Modal> PushModal(string containeStr, string prefab, bool playAnim = true)
+        {
+            var container = ModalContainer.Find(containeStr);
+    
+            var modal = new WindowOption(prefab, playAnim);
+    
+            return container.Push(modal);
+    
+        }
+    
+        public static async UniTask<Window> PushModalTakeWindow(
+            string containeStr,
+            string prefab,
+            bool playAnim = true)
+        {
+            var container = ModalContainer.Find(containeStr);
+    
+            var modal = new WindowOption(prefab, playAnim);
+    
+            container.Push(modal);
+    
+            if (modal.WindowCreated.Value != null)
+            {
+                return modal.WindowCreated.Value;
+            }
+    
+            return await modal.WindowCreated.WaitAsync();
+    
+        }
+        
+        public static async UniTask<Window> PushModalTakeWindow(
+            ModalContainer modalContainer,
+            string prefab,
+            bool playAnim = true)
+        {
+            var modal = new WindowOption(prefab, playAnim);
+    
+            modalContainer.Push(modal);
+    
+            if (modal.WindowCreated.Value != null)
+            {
+                return modal.WindowCreated.Value;
+            }
+    
+            return await modal.WindowCreated.WaitAsync();
+    
+        }
+    
+    
+        public static UniTask<Screen.Screen> PushScreen(string container, string prefab, bool playAnim = true, bool isPoolable = false)
+        {
+            var screenContainer = ScreenContainer.Find(container);
+    
+            var screen = new WindowOption(prefab, playAnim, IsPoolable: isPoolable);
+    
+            return screenContainer.Push(screen);
+    
+        }
+        // public static async void ShowToastForLocStr(IUIViewGroup viewGroup, LocalizedString locStr, float duration = 3)
+        // {
+        //     if (locStr is null)
+        //         return;
+        //
+        //     var str = await locStr.GetLocalizedStringAsync();
+        //
+        //     Toast.Show(viewGroup, str, duration);
+        // }
+        //
+    }
+    
+}
\ No newline at end of file
diff --git a/Assets/UnityScreenNavigator/Runtime/Core/Shared/Utils.cs.meta b/Assets/UnityScreenNavigator/Runtime/Core/Shared/Utils.cs.meta
new file mode 100644
index 0000000..c8e0600
--- /dev/null
+++ b/Assets/UnityScreenNavigator/Runtime/Core/Shared/Utils.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 1c7349d9e2bd40cfa48d124daea1d4b3
+timeCreated: 1727087853
\ No newline at end of file
diff --git a/Assets/UnityScreenNavigator/Runtime/Core/Shared/WindowOption.cs b/Assets/UnityScreenNavigator/Runtime/Core/Shared/WindowOption.cs
index cb2f511..14df35c 100644
--- a/Assets/UnityScreenNavigator/Runtime/Core/Shared/WindowOption.cs
+++ b/Assets/UnityScreenNavigator/Runtime/Core/Shared/WindowOption.cs
@@ -1,3 +1,4 @@
+using System;
 using Cysharp.Threading.Tasks;
 using UnityScreenNavigator.Runtime.Core.Shared.Views;