keyboard or to some other keyboard, click on the flag icon on the upper right and select a keyboard from the dropdown menu. A flag icon corresponding to the keyboard will be displayed on the upper right. Use the dropdown menu to select the U.S.Extended Keyboard ( ). Click Add to ensure that they keyboard is activated.
Extended keyboard is listed under English.
flag) icon on the first row of the Systems Preferences panel.
Go to the Apple menu and open Systems Preferences.See the Mac Keyboard instructions for activation instructions before Mavericks.