Shortcut - El Capitan Dialog Box switch between option
How do we switch between options in confirm dialog boxes on El Capitan. Older OSXs was switching by using spacebar. Not working anymore.
Solution 1:
Go to System Preferences then select Keyboard.
In the Shortcuts tab you will find an option for "Full Keyboard Access". Set the radio button for All Controls.
When confronted with a dialog box with buttons, Tab will now work to change focus between the buttons. This setting can be turned off by key combination of ⌃ control+F7 (hold down the fn function key too if needed.)