diff --git a/Hypercube.Client/Graphics/Event/WindowFocusChangedEvent.cs b/Hypercube.Client/Graphics/Event/WindowFocusChangedEvent.cs
new file mode 100644
index 0000000..3628687
--- /dev/null
+++ b/Hypercube.Client/Graphics/Event/WindowFocusChangedEvent.cs
@@ -0,0 +1,5 @@
+using Hypercube.Client.Graphics.Windows;
+
+namespace Hypercube.Client.Graphics.Event;
+
+public readonly record struct WindowFocusChangedEvent(WindowRegistration Registration, bool Focused);
\ No newline at end of file
diff --git a/Hypercube.Client/Graphics/Rendering/IRenderer.cs b/Hypercube.Client/Graphics/Rendering/IRenderer.cs
index 2b7f533..88858d0 100644
--- a/Hypercube.Client/Graphics/Rendering/IRenderer.cs
+++ b/Hypercube.Client/Graphics/Rendering/IRenderer.cs
@@ -20,6 +20,8 @@ public interface IRenderer
 
     void AddMonitor(MonitorRegistration monitor);
     
+    void OnFocusChanged(WindowRegistration window, bool focused);
+    
     // Drawing
     void DrawTexture(ITextureHandle texture, Box2 quad, Box2 uv, Color color);
 }
\ No newline at end of file
diff --git a/Hypercube.Client/Graphics/Rendering/Renderer.Render.cs b/Hypercube.Client/Graphics/Rendering/Renderer.Render.cs
index 986009d..054b396 100644
--- a/Hypercube.Client/Graphics/Rendering/Renderer.Render.cs
+++ b/Hypercube.Client/Graphics/Rendering/Renderer.Render.cs
@@ -1,6 +1,7 @@
 using Hypercube.Client.Graphics.Shading;
 using Hypercube.Client.Graphics.Texturing;
 using Hypercube.Client.Graphics.Viewports;
+using Hypercube.Client.Graphics.Windows;
 using Hypercube.Shared.Math;
 using Hypercube.Shared.Math.Box;
 using Hypercube.Shared.Runtimes.Loop.Event;
@@ -57,6 +58,9 @@ private void OnLoad()
 
     private void OnFrameUpdate(UpdateFrameEvent args)
     {
+#if DEBUG
+        _windowManager.WindowSetTitle(MainWindow, $"FPS: {_timing.Fps} | RealTime: {_timing.RealTime}");
+#endif
         _windowManager.PollEvents();
     }
 
diff --git a/Hypercube.Client/Graphics/Rendering/Renderer.Window.cs b/Hypercube.Client/Graphics/Rendering/Renderer.Window.cs
index de607c4..0033816 100644
--- a/Hypercube.Client/Graphics/Rendering/Renderer.Window.cs
+++ b/Hypercube.Client/Graphics/Rendering/Renderer.Window.cs
@@ -81,4 +81,9 @@ private bool InitMainWindow(ContextInfo? context, WindowCreateSettings settings)
         
         return (registration, null);
     }
+
+    public void OnFocusChanged(WindowRegistration window, bool focused)
+    {
+        _eventBus.Invoke(new WindowFocusChangedEvent(window, focused));
+    }
 }
\ No newline at end of file
diff --git a/Hypercube.Client/Graphics/Rendering/Renderer.cs b/Hypercube.Client/Graphics/Rendering/Renderer.cs
index e442103..057a1e5 100644
--- a/Hypercube.Client/Graphics/Rendering/Renderer.cs
+++ b/Hypercube.Client/Graphics/Rendering/Renderer.cs
@@ -1,4 +1,5 @@
 using System.Collections.Frozen;
+using Hypercube.Client.Graphics.Event;
 using Hypercube.Client.Graphics.OpenGL;
 using Hypercube.Client.Graphics.Texturing;
 using Hypercube.Client.Graphics.Windows;
diff --git a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Callbacks.cs b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Callbacks.cs
index a14cc4f..3eb4225 100644
--- a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Callbacks.cs
+++ b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Callbacks.cs
@@ -1,4 +1,5 @@
-using Hypercube.Client.Input;
+using Hypercube.Client.Graphics.Event;
+using Hypercube.Client.Input;
 using Hypercube.Client.Utilities;
 using OpenTK.Windowing.GraphicsLibraryFramework;
 using GlfwKeyModifiers = OpenTK.Windowing.GraphicsLibraryFramework.KeyModifiers;
@@ -56,4 +57,12 @@ private void OnWindowResized(Window* window, int width, int height)
 
         registration.SetSize(width, height);
     }
+
+    private void OnWindowFocusChanged(Window* window, bool focused)
+    {
+        if (!TryGetWindow(window, out var registration))
+            return;
+        
+        _renderer.OnFocusChanged(registration, focused);
+    }
 }
\ No newline at end of file
diff --git a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Monitors.cs b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Monitors.cs
index 8464941..e1f9b1a 100644
--- a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Monitors.cs
+++ b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Monitors.cs
@@ -63,7 +63,7 @@ private void ThreadSetupMonitor(Monitor* monitor)
             modes
         );
         
-        var registration = new GlfwMonitorRegistration(id, handle);;
+        var registration = new GlfwMonitorRegistration(monitor, handle);;
         _monitors[id] = registration;
         
         _renderer.AddMonitor(registration);
diff --git a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Window.cs b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Window.cs
index f2be459..74dc1c1 100644
--- a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Window.cs
+++ b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.Window.cs
@@ -127,6 +127,8 @@ private GlfwWindowRegistration WindowSetup(Window* window)
          GLFW.SetKeyCallback(window, OnWindowKeyHandled);
          GLFW.SetWindowCloseCallback(window, OnWindowClosed);
          GLFW.SetWindowSizeCallback(window, OnWindowResized);
+         GLFW.SetWindowFocusCallback(window, OnWindowFocusChanged);
+         
          
          return registration;
      }
diff --git a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.cs b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.cs
index b87272e..8f38686 100644
--- a/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.cs
+++ b/Hypercube.Client/Graphics/Windows/Manager/GlfwWindowManager.cs
@@ -1,8 +1,10 @@
-using Hypercube.Client.Graphics.Rendering;
+using Hypercube.Client.Graphics.Monitors;
+using Hypercube.Client.Graphics.Rendering;
 using Hypercube.Client.Graphics.Windows.Manager.Registrations;
 using Hypercube.Client.Input.Handler;
 using Hypercube.Shared.Dependency;
 using Hypercube.Shared.Logging;
+using Hypercube.Shared.Math.Vector;
 using OpenTK.Windowing.GraphicsLibraryFramework;
 
 namespace Hypercube.Client.Graphics.Windows.Manager;
@@ -90,14 +92,33 @@ public nint GetProcAddress(string procName)
         return GLFW.GetProcAddress(procName);
     }
     
-    public void WindowSetTitle()
+    public void WindowSetTitle(WindowRegistration window, string title)
     {
-        throw new NotImplementedException();
+        if (window is not GlfwWindowRegistration glfwWindow)
+            return;
+        
+        GLFW.SetWindowTitle(glfwWindow.Pointer, title);
+    }
+
+    public void WindowSetMonitor(WindowRegistration window, MonitorRegistration monitor, Vector2Int vector)
+    {
+        if (monitor is not GlfwMonitorRegistration glfwMonitor)
+            return;
+        
+        if (window is not GlfwWindowRegistration glfwWindow)
+            return;
+        
+        GLFW.SetWindowMonitor(
+            glfwWindow.Pointer, 
+            glfwMonitor.Pointer, 
+            vector.X, vector.Y, 
+            monitor.Handle.Size.X, monitor.Handle.Size.Y, 
+            monitor.Handle.RefreshRate);
     }
 
-    public void WindowSetMonitor()
+    public void WindowSetMonitor(WindowRegistration window, MonitorRegistration registration)
     {
-        throw new NotImplementedException();
+        WindowSetMonitor(window, registration, Vector2Int.Zero);
     }
 
     public void WindowRequestAttention(WindowRegistration window)
@@ -108,9 +129,34 @@ public void WindowRequestAttention(WindowRegistration window)
         GLFW.RequestWindowAttention(glfwWindow.Pointer);
     }
 
-    public void WindowSetVisible()
+    public void WindowSetSize(WindowRegistration window, Vector2Int size)
+    {
+        if (window is not GlfwWindowRegistration glfwWindow)
+            return;
+        
+        GLFW.SetWindowSize(glfwWindow.Pointer, size.X, size.Y);
+    }
+
+    public void WindowSetVisible(WindowRegistration registration, bool visible)
+    {
+        if (registration is not GlfwWindowRegistration glfwWindow)
+            return;
+
+        if (visible)
+        {
+            GLFW.ShowWindow(glfwWindow.Pointer);
+            return;
+        }
+            
+        GLFW.HideWindow(glfwWindow.Pointer);
+    }
+
+    public void WindowSetOpacity(WindowRegistration window, float opacity)
     {
-        throw new NotImplementedException();
+        if (window is not GlfwWindowRegistration glfwWindow)
+            return;
+        
+        GLFW.SetWindowOpacity(glfwWindow.Pointer, opacity);
     }
 
     public void WindowSwapBuffers(WindowRegistration window)
diff --git a/Hypercube.Client/Graphics/Windows/Manager/IWindowManager.cs b/Hypercube.Client/Graphics/Windows/Manager/IWindowManager.cs
index 6cba15b..52b9992 100644
--- a/Hypercube.Client/Graphics/Windows/Manager/IWindowManager.cs
+++ b/Hypercube.Client/Graphics/Windows/Manager/IWindowManager.cs
@@ -1,4 +1,6 @@
-using Hypercube.Client.Graphics.OpenGL;
+using Hypercube.Client.Graphics.Monitors;
+using Hypercube.Client.Graphics.OpenGL;
+using Hypercube.Shared.Math.Vector;
 
 namespace Hypercube.Client.Graphics.Windows.Manager;
 
@@ -19,10 +21,13 @@ public interface IWindowManager : IDisposable
     WindowCreateResult WindowCreate(ContextInfo? context, WindowCreateSettings settings, WindowRegistration? contextShare);
     void MakeContextCurrent(WindowRegistration? window);
     void WindowDestroy(WindowRegistration window);
-    void WindowSetTitle();
-    void WindowSetMonitor();
+    void WindowSetTitle(WindowRegistration window, string title);
+    void WindowSetMonitor(WindowRegistration window, MonitorRegistration monitor, Vector2Int vector2Int);
+    void WindowSetMonitor(WindowRegistration window, MonitorRegistration monitor);
     void WindowRequestAttention(WindowRegistration window);
-    void WindowSetVisible();
+    void WindowSetOpacity(WindowRegistration window, float opacity);
+    void WindowSetVisible(WindowRegistration registration, bool visible);
+    void WindowSetSize(WindowRegistration registration, Vector2Int size);
     void WindowSwapBuffers(WindowRegistration window);
 
     nint GetProcAddress(string procName);
diff --git a/Hypercube.Client/Graphics/Windows/Manager/Registrations/GlfwMonitorRegistration.cs b/Hypercube.Client/Graphics/Windows/Manager/Registrations/GlfwMonitorRegistration.cs
index 511be64..5366580 100644
--- a/Hypercube.Client/Graphics/Windows/Manager/Registrations/GlfwMonitorRegistration.cs
+++ b/Hypercube.Client/Graphics/Windows/Manager/Registrations/GlfwMonitorRegistration.cs
@@ -1,8 +1,9 @@
 using Hypercube.Client.Graphics.Monitors;
+using Monitor = OpenTK.Windowing.GraphicsLibraryFramework.Monitor;
 
 namespace Hypercube.Client.Graphics.Windows.Manager.Registrations;
 
-public sealed class GlfwMonitorRegistration(int id, IMonitorHandle handle) : MonitorRegistration(handle)
+public sealed unsafe class GlfwMonitorRegistration(Monitor* monitor, IMonitorHandle handle) : MonitorRegistration(handle)
 {
-    public int Id = id;
+    public Monitor* Pointer;
 }
\ No newline at end of file