HI,
I am an Chinese input method developer. I noticed that Sierra has a new feature that allows user to toggle inputing various languages by pressing on the Caps Lock key. Once a user adds a built-in input method, such as Apple's Zhuyin and so on, there will be a check box appearing in the Keyboard perference pane which says "Use Caps Lock key to switch from...".
However, if we use only the US keybaord layout and our own custom Input Method, there will not be such a checkbox.
I guess tthere msut be some difference between Apple's and our input methods. At first I guess I need to add additional keys into Info.plist file, but I did not see anything special in the Info.plist files of built-in input methods. I don't have any clue to make our product to support the function yet.
Any idea? Screenshots are attached.
Thanks!