How to use Caps Locks in macOS Sierra to switch between keyboards that use different characters
A feature added in macOS Sierra is handy for those who frequently switch among two languages while typing.
Twitter buddy Michael Fessler alerted Mac 911 to a great help for those who frequently type in keyboards for two different character sets, like Latin and Hebrew, Chinese, Arabic, and many others. You can make a quick-switch option from the keyboard without resorting to a menu, by turning a tap of the Caps Lock key into a keyboard swap.
The option appears in the Keyboard system preference pane in the Input Sources tab. It has a lot of explanation: “Use the Caps Lock key to switch to and from U.S. Press and hold to enable typing in all uppercase.”
This won’t appear when you have two keyboards that use the same basic underlying set of characters. That may be confusing, because, for instance, you can add a French keyboard that uses a different layout, like AZERTY, and it’s not an option. Both the U.S. and French keyboards derive characters from the same Latin set.
Pick a non-Latin keyboard, and the option appears. If you have multiple non-Latin keyboards, the first one you added is the only one that Caps Lock swaps between. If you add more and then delete the first or more, the most recently added or the last one remaining becomes the swappable keyboard.
This doesn’t work for all non-U.S. layouts, however. If you add Japanese, as my friend Matthew Amster-Burton did, the checkbox doesn’t appear. That’s because macOS’s default input method for Japanese is Hiragana, which relies on the underlying roman syllables, according to Matthew.
You can seemingly predict this: if the keyboard preview in the preference pane shows Latin (or “Western”) characters, the keyboard option doesn’t appear; if the preview shows non-Latin characters, it does.
Ask Mac 911
We’ve compiled a list of the most commonly asked questions we get, and the answers to them: read our super FAQ to see if you’re covered. If not, we’re always looking for new problems to solve! Email yours to email@example.com including screen captures as appropriate. Mac 911 cannot reply to email with troubleshooting advice nor can we publish answers to every question.