diff --git a/src/MauiSettings.Example/MainPage.xaml b/src/MauiSettings.Example/MainPage.xaml
index 6300da6..1b391b2 100644
--- a/src/MauiSettings.Example/MainPage.xaml
+++ b/src/MauiSettings.Example/MainPage.xaml
@@ -15,17 +15,38 @@
             <Label
                 Text="License"
                 Style="{StaticResource Headline}"
-                SemanticProperties.HeadingLevel="Level1" />
+                SemanticProperties.HeadingLevel="Level1"
+                />
 
             <Editor
                 Text="{Binding LicenseInfo}"
                 />
+            <Label
+                Text="New hash"
+                Style="{StaticResource SubHeadline}"
+                SemanticProperties.HeadingLevel="Level1"
+                />
+            <Grid
+                ColumnDefinitions="*,Auto"
+                >
+                <Editor
+                    Text="{Binding HashKey}"
+                    />
+                <Button
+                    Margin="4,2"
+                    Grid.Column="1"
+                    x:Name="ExchangeBtn"
+                    Text="New key"
+                    Command="{Binding ExchangeHashKeyCommand}"
+                    />
+            </Grid>
 
             <Button
                 x:Name="SaveBtn"
                 Text="Save Settings"
                 Command="{Binding SaveSettingsCommand}"
-                HorizontalOptions="Fill" />
+                HorizontalOptions="Fill" 
+                />
 
             <Button
                 x:Name="LoadBtn"
diff --git a/src/MauiSettings.Example/ViewModels/MainPageViewModel.cs b/src/MauiSettings.Example/ViewModels/MainPageViewModel.cs
index aeb584c..34f32d3 100644
--- a/src/MauiSettings.Example/ViewModels/MainPageViewModel.cs
+++ b/src/MauiSettings.Example/ViewModels/MainPageViewModel.cs
@@ -1,4 +1,5 @@
-using CommunityToolkit.Mvvm.ComponentModel;
+using AndreasReitberger.Shared.Core.Utilities;
+using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using MauiSettings.Example.Models.Settings;
 
@@ -10,6 +11,9 @@ public partial class MainPageViewModel : ObservableObject
         [ObservableProperty]
         bool isLoading = false;
 
+        [ObservableProperty]
+        string hashKey = App.Hash;
+
         [ObservableProperty]
         string licenseInfo = string.Empty;
         partial void OnLicenseInfoChanged(string value)
@@ -52,6 +56,15 @@ async Task LoadSettingsFromDevice()
             LoadSettings();
         }
 
+        [RelayCommand]
+        async Task ExchangeHashKey()
+        {
+            string newKey = EncryptionManager.GenerateBase64Key();
+            await SettingsApp.ExhangeKeyAsync(oldKey: App.Hash, newKey: newKey);
+            App.Hash = HashKey = newKey;
+            LoadSettings();
+        }
+
         [RelayCommand]
         async Task ToDictionary()
         {
diff --git a/src/MauiSettings/MauiSettingsGeneric.cs b/src/MauiSettings/MauiSettingsGeneric.cs
index befe8fe..3a1fb3d 100644
--- a/src/MauiSettings/MauiSettingsGeneric.cs
+++ b/src/MauiSettings/MauiSettingsGeneric.cs
@@ -26,7 +26,7 @@ namespace AndreasReitberger.Maui
     {
         #region Settings Object
 
-        static object _settingsObject;
+        static object? _settingsObject;
         public static SO SettingsObject
         {
             get
@@ -68,9 +68,7 @@ public MauiSettingsGeneric(SO settingsObject, string key)
 
         #region LoadSettings
         public static void LoadSettings() => LoadSettings(settings: SettingsObject);
-        //public static void LoadSettings(string? key = null) => LoadSettings(settings: SettingsObject, key: key);
-        
-        //public static void LoadSetting<T>(Expression<Func<SO, T>> value, string? key = null) => LoadObjectSetting(SettingsObject, value, key: key);
+
         public static void LoadSetting<T>(Expression<Func<SO, T>> value) => LoadObjectSetting(SettingsObject, value);
         
         public static async Task LoadSettingAsync<T>(Expression<Func<SO, T>> value, string? key = null)
@@ -80,10 +78,9 @@ await Task.Run(async delegate
                 await LoadObjectSettingAsync(SettingsObject, value, key: key);
             });
         }
-        //public void LoadObjectSettings(string? key = null) => LoadSettings(this, key: key);
+
         public void LoadObjectSettings() => LoadSettings(this);
         
-        //public static void LoadObjectSetting<T>(object settingsObject, Expression<Func<SO, T>> value, string? key = null) 
         public static void LoadObjectSetting<T>(object settingsObject, Expression<Func<SO, T>> value) 
             => GetExpressionMeta(settings: settingsObject, value, MauiSettingsActions.Load);
         
@@ -298,6 +295,17 @@ public static async Task<Tuple<string, Tuple<object, Type>>> ToSettingsTupleAsyn
         }
         #endregion
 
+        #region MyRegion
+
+        public static Task ExhangeKeyAsync(string? newKey = null, string? oldKey = null)
+            => Task.Run(async delegate
+            {
+                await LoadSecureSettingsAsync(key: oldKey);
+                await SaveSettingsAsync(key: newKey);
+            });
+
+        #endregion
+
         #region Private
         static List<MemberInfo> GetClassMetaAsList(object settings)
         {