About the autocomplete of Qt Creator 2.0.0

I have some questions about Qt creator.

Under Win XP, I can use autocomplete with hot key 'ctrl + whites开发者_StackOverflow中文版pace'. Can I change the hot key to another like 'ctrl + shift + u' ? Because the hot key 'ctrl + whitespace' often is used to change my input method.

And under Mac OS X, I installed Qt 4.7 with Qt Creator too. But I cannot find a hot key for autocomplete.

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Tools -> Options, go to Environment, select the Keyboard tab, then either search for "complete" or scroll to the TextEditor section. Change the CompleteThis command to whatever hotkey you want.