Dev Juice: How do I autocomplete in Xcode 4? | TUAW – The Unofficial Apple Weblog.
Creating your own custom snippets and naming them with shortcuts is just as easy. Select text in the Xcode code editor. Click and hold for a second in the selection and then drag it over to the library. It appears at the end of the library list and is named My Code Snippet by default.
I use a lot of completions, but I probably need to start making some of my own. It takes time to save time.