# Cannot tab through all fields in a dialog box on Apple Macintosh operating system

If you cannot tab through fields in a dialog box on a Macintosh system, you need to switch on the Full Keyboard Access feature on your Macintosh system.

To enable the Full Keyboard Access feature, do the following:

1. On your Macintosh system, open System Preferences.
2. Click Keyboard.
3. Click the Keyboard Shortcuts tab.
4. Under the Full keyboard access option, select the All Controls option.