I definitely want you to customize your phone as you'd like. Are you referring to the "very bottom 4 icons" as the icons with the search and home key? If so the next set is for the phone, contacts, messaging and apps and these cannot be edited. If by the "very bottom 4 icons" are the phone contacts, messaging and apps then the next set just need to be pressed and held down until you see the option to remove at the top. Drag the icon you want to remove to that remove section and it will be gone from your home screen. Let us know if you need further assistance.
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