Support Home Button Question

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http://androidforums.com – Just purchased phone today, and noticed when im on a home screen thats not the default one, hitting the home button dont bring me back to it. I have to hit it several times fast in order for it to go to default home screen. Is there a setting im not seeing. Next thing is long press home button opens my browser, is there a way to disable this. Also, Is there a way to add more home screens. I know my other phones allow me to pinch screen and it zooms out of all home screens and allows me to add or delete. (General)