diff --git a/UniversalCodePatcher.Avalonia/MainWindow.axaml b/UniversalCodePatcher.Avalonia/MainWindow.axaml
index 3d85528..7358ab8 100644
--- a/UniversalCodePatcher.Avalonia/MainWindow.axaml
+++ b/UniversalCodePatcher.Avalonia/MainWindow.axaml
@@ -12,15 +12,33 @@
         <MenuItem Header="_New Project" Click="OnNewProject"/>
         <MenuItem Header="_Open Project" Click="OnOpenProject"/>
         <MenuItem Header="_Save" Click="OnSaveProject"/>
+ 
+        <MenuItem x:Name="RecentMenu" Header="Recent Projects"/>
+ 
         <Separator/>
         <MenuItem Header="E_xit" Click="OnExit"/>
       </MenuItem>
       <MenuItem Header="_Edit">
         <MenuItem Header="_Undo" Click="OnUndo"/>
         <MenuItem Header="_Redo" Click="OnRedo"/>
+ 
+        <MenuItem Header="Select _All Files" Click="OnSelectAllFiles"/>
+        <MenuItem Header="_Find in Files" Click="OnFindInFiles"/>
+      </MenuItem>
+      <MenuItem Header="_View">
+        <MenuItem Header="_Refresh" Click="OnRefresh"/>
+        <MenuItem x:Name="HiddenToggle" Header="Show Hidden Files" Click="OnToggleHidden"/>
+        <MenuItem Header="Expand All" Click="OnExpandAll"/>
+        <MenuItem Header="Collapse All" Click="OnCollapseAll"/>
+      </MenuItem>
+      <MenuItem Header="_Tools">
+        <MenuItem Header="_Settings" Click="OnSettings"/>
+        <MenuItem Header="_Backup Manager" Click="OnBackupManager"/>
+        <MenuItem Header="_Module Manager" Click="OnModuleManager"/>
       </MenuItem>
       <MenuItem Header="_Help">
         <MenuItem Header="_About" Click="OnAbout"/>
+        <MenuItem Header="_Documentation" Click="OnDocumentation"/>
       </MenuItem>
     </Menu>
     <Border DockPanel.Dock="Bottom" Background="#EEE" Padding="4">
diff --git a/UniversalCodePatcher.Avalonia/MainWindow.axaml.cs b/UniversalCodePatcher.Avalonia/MainWindow.axaml.cs
index 6238d49..03534cd 100644
--- a/UniversalCodePatcher.Avalonia/MainWindow.axaml.cs
+++ b/UniversalCodePatcher.Avalonia/MainWindow.axaml.cs
@@ -4,17 +4,43 @@
 using Avalonia.Platform.Storage;
 using Avalonia;
 using System.Collections.Generic;
+ 
+using System.Diagnostics;
 using System.IO;
+using System.Linq;
+using System.Text.Json;
+using System;
+using Avalonia.VisualTree;
+using Avalonia.Layout;
+using System.IO;
+ 
 
 namespace UniversalCodePatcher.Avalonia;
 
 public partial class MainWindow : Window
 {
     private string? _projectPath;
+ 
+    private bool _showHiddenFiles;
+    private bool _isDirty;
+    private readonly List<string> _recentProjects = new();
+    private const int MaxRecent = 5;
 
+    private string RecentFile => Path.Combine(
+        Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+        "UniversalCodePatcher", "recent.txt");
+ 
     public MainWindow()
     {
         InitializeComponent();
+ 
+        LoadRecentProjects();
+        SourceBox.PropertyChanged += (_, e) =>
+        {
+            if (e.Property == TextBox.TextProperty)
+                _isDirty = true;
+        };
+ 
     }
 
     private async void OnNewProject(object? sender, RoutedEventArgs e)
@@ -28,6 +54,9 @@ private async void OnNewProject(object? sender, RoutedEventArgs e)
         {
             _projectPath = path;
             LoadProject(path);
+            AddRecentProject(path);
+            _isDirty = false;
+ 
         }
     }
 
@@ -36,6 +65,109 @@ private void OnOpenProject(object? sender, RoutedEventArgs e)
         OnNewProject(sender, e);
     }
 
+ 
+    private void AddRecentProject(string path)
+    {
+        Directory.CreateDirectory(Path.GetDirectoryName(RecentFile)!);
+        _recentProjects.Remove(path);
+        _recentProjects.Insert(0, path);
+        if (_recentProjects.Count > MaxRecent)
+            _recentProjects.RemoveAt(_recentProjects.Count - 1);
+        File.WriteAllLines(RecentFile, _recentProjects);
+        PopulateRecentMenu();
+    }
+
+    private void LoadRecentProjects()
+    {
+        if (File.Exists(RecentFile))
+            _recentProjects.AddRange(File.ReadAllLines(RecentFile));
+        PopulateRecentMenu();
+    }
+
+    private void PopulateRecentMenu()
+    {
+        if (this.FindControl<MenuItem>("RecentMenu") is { } recent)
+        {
+            recent.Items.Clear();
+            foreach (var p in _recentProjects)
+            {
+                var item = new MenuItem { Header = p };
+                item.Click += (_, _) => { _projectPath = p; LoadProject(p); };
+                recent.Items.Add(item);
+            }
+        }
+    }
+
+    private async void OnSaveProject(object? sender, RoutedEventArgs e)
+    {
+        if (_projectPath == null)
+            return;
+        var picker = TopLevel.GetTopLevel(this)?.StorageProvider;
+        if (picker == null)
+            return;
+        var file = await picker.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            SuggestedFileName = "project.json"
+        });
+        if (file != null)
+        {
+            var state = new { ProjectPath = _projectPath };
+            await using var stream = await file.OpenWriteAsync();
+            await JsonSerializer.SerializeAsync(stream, state);
+            _isDirty = false;
+        }
+    }
+
+    private async void OnExit(object? sender, RoutedEventArgs e)
+    {
+        if (_isDirty)
+        {
+            var confirm = new Window
+            {
+                Width = 300,
+                Height = 120,
+                Title = "Exit",
+                Content = new StackPanel
+                {
+                    Margin = new Thickness(20),
+                    Children =
+                    {
+                        new TextBlock { Text = "Unsaved changes. Exit anyway?" },
+                        new StackPanel
+                        {
+                            Orientation = Orientation.Horizontal,
+                            HorizontalAlignment = HorizontalAlignment.Right,
+                            Children =
+                            {
+                                new Button { Content = "Yes", Margin = new Thickness(5), IsDefault = true },
+                                new Button { Content = "No", Margin = new Thickness(5), IsCancel = true }
+                            }
+                        }
+                    }
+                }
+            };
+            var yesButton = ((confirm.Content as StackPanel)!.Children[1] as StackPanel)!.Children[0] as Button;
+            var noButton = ((confirm.Content as StackPanel)!.Children[1] as StackPanel)!.Children[1] as Button;
+            bool result = false;
+            yesButton!.Click += (_, _) => { result = true; confirm.Close(); };
+            noButton!.Click += (_, _) => { confirm.Close(); };
+            await confirm.ShowDialog(this);
+            if (!result)
+                return;
+        }
+        (Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime)?.Shutdown();
+    }
+
+    private void OnUndo(object? sender, RoutedEventArgs e)
+    {
+        SourceBox.Undo();
+    }
+
+    private void OnRedo(object? sender, RoutedEventArgs e)
+    {
+        SourceBox.Redo();
+    }
+=======
     private void OnSaveProject(object? sender, RoutedEventArgs e)
     {
         // Placeholder for saving project state
@@ -48,6 +180,7 @@ private void OnExit(object? sender, RoutedEventArgs e)
 
     private void OnUndo(object? sender, RoutedEventArgs e) { }
     private void OnRedo(object? sender, RoutedEventArgs e) { }
+ 
 
     private async void OnAbout(object? sender, RoutedEventArgs e)
     {
@@ -74,10 +207,18 @@ private IEnumerable<TreeViewItem> BuildTree(string path)
         var root = new TreeViewItem { Header = Path.GetFileName(path), Tag = path };
         foreach (var file in Directory.GetFiles(path))
         {
+ 
+            if (!_showHiddenFiles && Path.GetFileName(file).StartsWith('.'))
+                continue;
+ 
             root.Items.Add(new TreeViewItem { Header = Path.GetFileName(file), Tag = file });
         }
         foreach (var dir in Directory.GetDirectories(path))
         {
+ 
+            if (!_showHiddenFiles && Path.GetFileName(dir).StartsWith('.'))
+                continue;
+ 
             root.Items.Add(BuildSubTree(dir));
         }
         return new[] { root };
@@ -88,12 +229,135 @@ private TreeViewItem BuildSubTree(string dir)
         var node = new TreeViewItem { Header = Path.GetFileName(dir), Tag = dir };
         foreach (var file in Directory.GetFiles(dir))
         {
+ 
+            if (!_showHiddenFiles && Path.GetFileName(file).StartsWith('.'))
+                continue;
+ 
             node.Items.Add(new TreeViewItem { Header = Path.GetFileName(file), Tag = file });
         }
         foreach (var sub in Directory.GetDirectories(dir))
         {
+ 
+            if (!_showHiddenFiles && Path.GetFileName(sub).StartsWith('.'))
+                continue;
+ 
             node.Items.Add(BuildSubTree(sub));
         }
         return node;
     }
+ 
+    private void OnRefresh(object? sender, RoutedEventArgs e)
+    {
+        if (_projectPath != null)
+            LoadProject(_projectPath);
+    }
+
+    private void OnToggleHidden(object? sender, RoutedEventArgs e)
+    {
+        _showHiddenFiles = HiddenToggle.IsChecked == true;
+        OnRefresh(sender, e);
+    }
+
+    private void ExpandCollapseAll(bool expand)
+    {
+        foreach (var item in ProjectTree.Items)
+            ExpandNode(item as TreeViewItem, expand);
+    }
+
+    private void ExpandNode(TreeViewItem? node, bool expand)
+    {
+        if (node == null) return;
+        node.IsExpanded = expand;
+        foreach (var child in node.Items)
+            ExpandNode(child as TreeViewItem, expand);
+    }
+
+    private void OnExpandAll(object? sender, RoutedEventArgs e) => ExpandCollapseAll(true);
+    private void OnCollapseAll(object? sender, RoutedEventArgs e) => ExpandCollapseAll(false);
+
+    private void OnSelectAllFiles(object? sender, RoutedEventArgs e)
+    {
+        foreach (var item in ProjectTree.Items)
+            SelectNode(item as TreeViewItem);
+    }
+
+    private void SelectNode(TreeViewItem? node)
+    {
+        if (node == null) return;
+        node.IsSelected = true;
+        foreach (var child in node.Items)
+            SelectNode(child as TreeViewItem);
+    }
+
+    private async void OnFindInFiles(object? sender, RoutedEventArgs e)
+    {
+        if (_projectPath == null) return;
+        var input = new Window
+        {
+            Width = 300,
+            Height = 120,
+            Title = "Find",
+            Content = new StackPanel
+            {
+                Margin = new Thickness(10),
+                Children =
+                {
+                    new TextBox { Name = "QueryBox" },
+                    new Button { Content = "Search", Margin = new Thickness(0,5,0,0), HorizontalAlignment = HorizontalAlignment.Right }
+                }
+            }
+        };
+        var queryBox = input.FindControl<TextBox>("QueryBox");
+        var searchButton = input.GetVisualDescendants().OfType<Button>().First();
+        string? query = null;
+        searchButton.Click += (_, _) => { query = queryBox.Text; input.Close(); };
+        await input.ShowDialog(this);
+        if (string.IsNullOrWhiteSpace(query)) return;
+        var results = new List<string>();
+        foreach (var file in Directory.EnumerateFiles(_projectPath, "*", SearchOption.AllDirectories))
+        {
+            if (!_showHiddenFiles && Path.GetFileName(file).StartsWith('.'))
+                continue;
+            var text = await File.ReadAllTextAsync(file);
+            if (text.Contains(query, StringComparison.OrdinalIgnoreCase))
+                results.Add(file);
+        }
+        var dlg = new Window
+        {
+            Width = 400,
+            Height = 300,
+            Title = "Search Results",
+            Content = new ListBox { ItemsSource = results }
+        };
+        await dlg.ShowDialog(this);
+    }
+
+    private async void OnSettings(object? sender, RoutedEventArgs e)
+    {
+        var dlg = new Window { Width = 400, Height = 300, Title = "Settings" };
+        await dlg.ShowDialog(this);
+    }
+
+    private async void OnBackupManager(object? sender, RoutedEventArgs e)
+    {
+        var dlg = new Window { Width = 400, Height = 300, Title = "Backup Manager" };
+        await dlg.ShowDialog(this);
+    }
+
+    private async void OnModuleManager(object? sender, RoutedEventArgs e)
+    {
+        var dlg = new Window { Width = 400, Height = 300, Title = "Module Manager" };
+        await dlg.ShowDialog(this);
+    }
+
+    private void OnDocumentation(object? sender, RoutedEventArgs e)
+    {
+        var url = "https://example.com/docs";
+        try
+        {
+            Process.Start(new ProcessStartInfo { FileName = url, UseShellExecute = true });
+        }
+        catch { }
+    }
+ 
 }