The App Exposé Frustration
macOS includes a window management feature called “App Exposé” (frequently referred to as “Application Windows” in modern settings menus). This feature is a subset of Mission Control; instead of showing all windows across the entire system, it darkens the screen and fans out only the open windows belonging to the currently active application. Apple assigns specific default keyboard shortcuts to trigger this view, commonly utilizing the Control + Down Arrow combination.
While this is useful if you regularly work with 20 different Safari windows or massive Finder arrays, it is incredibly disruptive for power users and developers. The Control + Down Arrow shortcut is frequently utilized in professional software—such as code editors (for multi-line cursors or scrolling), terminal emulators, or complex spreadsheet applications. If you attempt to execute a command in your IDE and macOS intercepts the keystroke to suddenly fan out all your windows, it breaks your concentration and interrupts your workflow. If you prefer to rely on application-specific window menus or command-tab switching, you should disable this OS-level shortcut to reclaim the keystroke.
How to Turn Off the Application Windows Shortcut
You can unbind the App Exposé hotkeys via the Keyboard Shortcuts settings.
- Click the Apple Logo in the top-left corner of the screen and select System Settings… (or System Preferences).
- In the left-hand sidebar, scroll down and click on Keyboard.
- In the right-hand pane, click the Keyboard Shortcuts… button.
- In the new window that appears, select Mission Control from the left-hand list.
- Look at the right-hand pane for the specific checkbox labelled Application windows.
- Uncheck the box next to it to completely disable the shortcut.
- Click the blue Done button to save your changes.
Pressing Control + Down Arrow (or your previously assigned shortcut) will no longer trigger the macOS window expose, allowing your active applications to successfully receive the command.