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November 3, 2018

Eight Hidden macOS Features You Can Access With the Option Key

by John_A

The Option () key – or Alt key, depending on your keyboard layout – can be used to unlock all kinds of features hidden in your Mac’s operating system.

Try holding it down next time you access an app’s menu bar options, for instance, and you’ll often see several tweaked actions available to you.

Additional Finder File actions revealed via the Option key
In the Finder File menu shown above, Open becomes Open and Close Window (if you have a file selected in Finder, selecting this opens the file and also closes the Finder window), Close Window becomes Close All, and Move to Trash becomes Delete Immediately, amongst other options.

Below are just some of our favorite uses for the Option key in macOS. Feel free to share any other Option key actions you frequently use in the comments section at the bottom of this article.

Finder View Actions

In Finder’s List view, hold Option and click the triangle next to a folder to expand it, and the contents of any subfolders nested inside will also be revealed.


In Column view, you can also resize all columns in a window by Option-clicking on the column selector.

Menu Bar System Icons

Holding the Option key when you click menu bar system icons often reveals hidden actions. Option-click the Wi-Fi icon for example and you’ll see extensive information on the currently connected network.


Do the same for the volume icon and you’ll be able to change not only the audio output device but the input device, too. Elsewhere, Option-clicking the Time Machine icon will let you Browse Other Backup Disks, and you can also Option-click the Notifications Bar icon to turn it on and off.

Safari Browser

To clear all history including cached website data and cookies, you would select Safari -> Clear History… from the Safari menu bar. If you hold the Option key though, Clear History… becomes Clear History and Keep Website Data.


Hold down the Option key when you click a tab’s close button, and all other tabs will close except for that one. In Safari’s File menu, the Close Tabs option also becomes Close Other Tabs with Option held down.

Preview File Formats

When you come to save or export a file in Preview, Option-click the Format dropdown to get access to several more available file types.

Open Preference Panes

If your Mac’s keyboard has icons printed on some of the functions keys, you can press them to perform special features. For example, pressing the F11/12 keys with speaker icons adjusts the volume.


If you hold down Option when you press one of these keys, this will open the System Preference pane associated with the feature. Option-F11/12 opens the Sound pane, for instance.

Scrollbar Behavior

In the General preference pane, you can select between two forms of scrollbar behavior: Jump to the next page and Jump to the spot that’s clicked.


You can actually switch between the two behaviors on the fly: simply Option-click anywhere in a window’s scrollbar to jump to that location in the open document or webpage.

Force Quit Apps

If an application is acting up, hold down Option and right-click its icon in the Dock to reveal a Force Quit action in the popup menu.


You can also Option-click an app icon to bring its window to the forefront and simultaneously hide another app’s active window.

Resize Windows

When you drag your mouse from one side or corner of a window to resize it, you can hold the Option key to resize the dimensions of the window from its center point instead.

Adjusting from one corner affects all corners with the Option key held

Related Roundup: macOS Mojave
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