Cannot find the pop up list relating to the #pragma mark compiler directive

I am going through some sample code and notice the compiler directive : "#pragma mark xxx". Read that the pragma is related to some popup menu in the IDE. But I don't seem to be able to activate the popup menu. Can anyone show me how to display the menu relating 开发者_JS百科to "#pragma mark" ?

(Xcode 3.2.5)

it's directly above the code in your source code editor.

And once you click there you will see this: