Can I configure my windows key to act like a fn key?

I've always hated fn keys. Give me dedicated home/end/pgup/pgdn keys any day. But then I got a new laptop (xps 13), and used it almost exclusively for 6 months.

Now I go back to my desktop, and I'm unable to code in it without constantly hitting windows+left, windows+up, etc etc. Which does nothing useful, other than to move windows to one side of the monitor etc.

Is there something I can do to re-map windows+up to page up, windows+left to home, etc etc?

Thanks!

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