Input source

Input sources let you type text in other languages, enter text using an alternate keyboard layout (such as the Dvorak layout for English), or use other methods of entering text (such as the Handwriting input source for Chinese).

To add input sources and change their settings, choose Apple menu  > System Settings, then click Keyboard in the sidebar. (You may need to scroll down.) Go to Text Input, then click Edit.

You can also set an option in Keyboard settings to change input sources by pressing the Fn key or the Globe key (if available on the keyboard).