How to change keyboard shortcut for opening Character Viewer on OS X El Capitan I can open up the Character Viewer app using the Control-Command-Space keys combination.  

I want to change this keyboard shortcut so I can use it for some other action.
How can this be done?
For some reason you can't just disable this shortcut, since it's not listed in the preferences by default.
You have to add a shortcut in System Prefs / Keyboard / Shortcuts named "Emoji &amp; Symbols" and bind it to something else, and it will become available.