I've been using Command ⌘+1~4 shortcuts for switching spaces on older versions of OS X.

But after upgrading to Lion (10.7.4), Command ⌘+3 and Command ⌘+4 do not work!

I need them to switch tabs in web browser and they are very useful shortcuts in Xcode too.

I looked in Keyboard in System Preference but couldn't find where they are defined.

Command ⌘+1 and Command ⌘+2 work in both Chrome and Xcode. (Command ⌘+5~6 works also)

I don't know why Command ⌘+3 and Command ⌘+4 do not work in any application!

My guess is they're defined for something else globally. But I can't find where.

Another guess is they're probably defined for 'Switch to Desktop 3, 4' since I've been using old version of OSX and upgraded to Lion.

Like DMan pointed out, after removing 'Switch to Desktop 1, 2', Command ⌘+1 and Command ⌘+2 work just fine.

But where's 'Switch to Desktop 3 and 4'??

  • I don't have Lion but you can switch tab with ctrl + tab.
    – benoît
    Jun 21, 2012 at 7:27
  • Switching tabs in what? A browser? Safari has never supported command 1~0. Chrome and Xcode do work as you've indicated. Jun 22, 2012 at 0:11

1 Answer 1


Try this:

  1. Open System Preferences -> Keyboard
  2. Click the Keyboard Shortcuts tab.
  3. From the left column, choose Mission Control.
  4. In the Pane on the right, you should be able to re-set the keyboard shortcuts for your spaces.

enter image description here

  • Thanks. I see Cmd+1, Cmd+2 are defined for 'Switch to Desktop 1, 2'. I disabled them. But where's 'Switch to Desktop 3 and 4'??
    – SeniorLee
    Jun 22, 2012 at 0:53
  • 1
    I believe the options for 'Switch to Desktop N' appear once you have N spaces added via Mission Control.
    – noffle
    Jun 22, 2012 at 5:57
  • GOD! You're my saviour, noffle!! Thank you so much!! Everything works just fine!!
    – SeniorLee
    Jun 22, 2012 at 8:11

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