On Mountain Lion 10.8.2, when I use the Keyboard Viewer, I can see that Ctrl+1, Ctrl+2, Ctrl+3 register correctly when I type them.

Ctrl+4 or Ctrl+5 however, only show the Ctrl key being hit and the numbers ignored.

How can I enable all the Ctrl+# keys?

I don't really need them for spaces - rather, I need all the keys available for SC2 (FWIW, Ctrl+1, Ctrl+2, Ctrl+3 work fine in SC2, but the higher numbers don't).

  • That's very strange. FWIW all those key combos work fine for me on 10.8.3. Did you check to see if the 4 and 5 keys register without modifiers?
    – Elliott
    Commented May 17, 2013 at 8:57

1 Answer 1


I had a similar issue of unresponsive Ctrl+3 and Ctrl+4 keystrokes using OS X 10.8.4 and found a solution that worked for me using information from this answer.

  1. Open ~/Library/Preferences/com.apple.symbolichotkeys.plist (I used XCode).
  2. Update keys for the shortcuts which are giving you trouble by switching enabled to NO. I switched 120 and 121, which represent Ctrl+3 and Ctrl+4. I am not sure about Ctrl+5 or Ctrl+6.
  3. Restart your computer.

Hope this helps!

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