diff --git a/client/src/app.c b/client/src/app.c
index 3f49f87d..2849e5b1 100644
--- a/client/src/app.c
+++ b/client/src/app.c
@@ -68,6 +68,9 @@ void app_updateCursorPos(double x, double y)
   g_cursor.pos.x = x;
   g_cursor.pos.y = y;
   g_cursor.valid = true;
+
+  if (g_state.overlayInput)
+    g_state.io->MousePos = (ImVec2) { x * g_state.windowScale, y * g_state.windowScale };
 }
 
 void app_handleFocusEvent(bool focused)
@@ -214,10 +217,34 @@ void spiceClipboardNotice(const SpiceDataType type)
   g_state.ds->cbNotice(cb_spiceTypeToLGType(type));
 }
 
+static int mapSpiceToImGuiButton(uint32_t button)
+{
+  switch (button)
+  {
+    case 1:  // SPICE_MOUSE_BUTTON_LEFT
+      return ImGuiMouseButton_Left;
+    case 2:  // SPICE_MOUSE_BUTTON_MIDDLE
+      return ImGuiMouseButton_Middle;
+    case 3:  // SPICE_MOUSE_BUTTON_RIGHT
+      return ImGuiMouseButton_Right;
+  }
+
+  return -1;
+}
+
 void app_handleButtonPress(int button)
 {
   g_cursor.buttons |= (1U << button);
 
+  if (g_state.overlayInput)
+  {
+    int igButton = mapSpiceToImGuiButton(button);
+    if (igButton != -1)
+      g_state.io->MouseDown[igButton] = true;
+    if (g_state.io->WantCaptureMouse)
+      return;
+  }
+
   if (!core_inputEnabled() || !g_cursor.inView)
     return;
 
@@ -229,6 +256,15 @@ void app_handleButtonRelease(int button)
 {
   g_cursor.buttons &= ~(1U << button);
 
+  if (g_state.overlayInput)
+  {
+    int igButton = mapSpiceToImGuiButton(button);
+    if (igButton != -1)
+      g_state.io->MouseDown[igButton] = false;
+    if (g_state.io->WantCaptureMouse)
+      return;
+  }
+
   if (!core_inputEnabled())
     return;
 
diff --git a/client/src/keybind.c b/client/src/keybind.c
index 1aa43b0e..5d57407c 100644
--- a/client/src/keybind.c
+++ b/client/src/keybind.c
@@ -133,14 +133,30 @@ static void bind_passthrough(int sc, void * opaque)
   spice_key_up  (sc);
 }
 
+static void bind_toggleOverlay(int sc, void * opaque)
+{
+  g_state.overlayInput ^= true;
+  if (g_state.overlayInput)
+  {
+    g_state.io->ConfigFlags &= ~ImGuiConfigFlags_NoMouse;
+    app_alert(LG_ALERT_INFO, "Overlay input enabled");
+  }
+  else
+  {
+    g_state.io->ConfigFlags |= ImGuiConfigFlags_NoMouse;
+    app_alert(LG_ALERT_INFO, "Overlay input disabled");
+  }
+}
+
 void keybind_register(void)
 {
-  app_registerKeybind(KEY_F, bind_fullscreen, NULL, "Full screen toggle");
-  app_registerKeybind(KEY_V, bind_video     , NULL, "Video stream toggle");
-  app_registerKeybind(KEY_D, bind_showFPS   , NULL, "FPS display toggle");
-  app_registerKeybind(KEY_T, bind_showTiming, NULL, "Show frame timing information");
-  app_registerKeybind(KEY_R, bind_rotate    , NULL, "Rotate the output clockwise by 90° increments");
-  app_registerKeybind(KEY_Q, bind_quit      , NULL, "Quit");
+  app_registerKeybind(KEY_F, bind_fullscreen   , NULL, "Full screen toggle");
+  app_registerKeybind(KEY_V, bind_video        , NULL, "Video stream toggle");
+  app_registerKeybind(KEY_D, bind_showFPS      , NULL, "FPS display toggle");
+  app_registerKeybind(KEY_T, bind_showTiming   , NULL, "Show frame timing information");
+  app_registerKeybind(KEY_R, bind_rotate       , NULL, "Rotate the output clockwise by 90° increments");
+  app_registerKeybind(KEY_Q, bind_quit         , NULL, "Quit");
+  app_registerKeybind(KEY_O, bind_toggleOverlay, NULL, "Toggle overlay");
 
   if (g_params.useSpiceInput)
   {
diff --git a/client/src/main.h b/client/src/main.h
index 8f166152..01e73cee 100644
--- a/client/src/main.h
+++ b/client/src/main.h
@@ -53,6 +53,7 @@ struct AppState
   struct ll  * overlays;
   char       * fontName;
   ImFont     * fontLarge;
+  bool         overlayInput;
 
   bool        alertShow;
   char      * alertMessage;