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Xcode 4.2 Tabbed Application - Adding New Tab view

I'm new to iPhone app and I followed following tutorial to develop a tab view application using story board:

It's working fine.Thanks to the Author. :)

Now, I want to add couple of more tabs to the main view(default, its 2 tabs; I want 3 or 4).

How Can I do it?

iphone objective-c ios tabs storyboard
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