2&3) you can change all key bindings very easily in the options no problem
[You must be logged in to view images. Log in or Register.] click on EQ buttons (or alt+o?) and go to the key tab. As for swimming up, just look up and move forward
[You must be logged in to view images. Log in or Register.] if you're in 3rd person view, you might have to first scroll up back to 1st person (or hit F9 until you go back to 1stP).
4) this forum is usually a good place to ask questions
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