What is Referencing outlet collection in Xcode4 Interface Builder?

user_140765 0
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Here, I have pointed to the Referencing Outlet Collection. I am not able to figure out its usage in XCode4.

I am asking for the `new feature of REFERENCING OUTLET COLLECTION in InterfaceBuilder of XCode4".

iboutletcollection xcode4 interface-builder iphone ios
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