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Change the behavior of the modifier keys on Mac
You can change the action that modifier keys, such as Control or Option, perform when you press them.
On your Mac, choose Apple menu
Click Modifier Keys.
For each modifier whose default action you want to change, click the pop-up menu, then choose the action you want performed when you press the key, or choose No Action.
For example, if you’re used to a keyboard that had the Control key where the Caps Lock key is located on an Apple keyboard, you could click the Caps Lock pop-up menu, then choose Control to have that action performed whenever you press the Caps Lock key.
To return the keys to their original settings, click Restore Defaults.