How To Change Keyboard Keys Mac. Start by selecting your keyboard in the drop-down list at the top if necessary. You can modify the Alt key too if you want but it maps to the Option key.
Press the left Command key. Choose the new action that you want the modifier key to do when clicked on. In the Input Sources tab click the Add button on the bottom left to start adding a new input source for your keyboard.
Of greater interest perhaps is the option to adjust your modifier keys.
Select a preset from the list. Weve added a notification to let you know youve swapped. For the Option Key setting. Adding a new input source for the keyboard in Mac OS.
