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How to change a function of a key

I got a new laptop recently and am just learning linux. It runs great and im learning a lot, but I have one problem with the hardware. Im used to the backspace being the most upper right key. Whenever I try to hit the backspace, I end up hitting home and returning the cursor to the begining of the line. I was wondering if there was someway to change the home key to become backspace as well. I never use the home function and would rather have an extra backspace or even a key that does nothing, than a key that moves my cursor away from the mistake and doesnt erase it. Is there anyway to either make the home button also backspace, or just do nothing?

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