laptop – Add extra Fn key combinations, for example Fn+4 = Home

I play SC2 on my laptop, and therefore I have mapped the normal arrow keys to other buttons. To counteract this, I’ve mapped the numbers 8 4 5 and 6 on my numpad to arrows. Problem is, the original arrow buttons come with Fn key combinations to give Home, End, PgUp and PgDown. I am wondering if it would be possible to have Fn combine with 4 5 6 8 to give the same Home etc.. commands.

Couldn’t find anything over this on the interwebz. Thanks :-].

My laptop is Lenovo 15ARE05 and I’m on win10. I’m slightly familiar with AutoHotkey.