Fix macOS Stage Manager Full-Screen Gap Caused by External Keyboard Fn Key Limits

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Mac users running Stage Manager often find that window-maximizing tools like Rectangle leave a 15–20% strip on the left side of the screen reserved for app thumbnails. The built-in macOS 'Fill' command solves this by stretching a window edge-to-edge while keeping Stage Manager active, but its default shortcut Fn+Control+F fails on third-party keyboards because those devices process the Fn key internally and never pass it to macOS. Users can work around this by creating a custom keyboard shortcut — such as Control+Option+F — mapped to the menu item 'Fill' under System Settings > Keyboard > App Shortcuts. Logitech keyboard users should also switch their device to Mac mode by holding Fn+O for three seconds, ensuring modifier keys map correctly to Apple's layout. Together, these two steps restore full-screen functionality without requiring an Apple Magic Keyboard.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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