Also try the Pok3r way, setting the right hand side Shift, Ctrl, Win and Menu buttons as arrow keys. I use this permanently on my GH60 as I never use those keys for their original functions. This way I don't have to use Fn to get arrow keys even though I have those mapped as FN+IJKL too. I also change Caps lock with Ctrl and Ctrl with Fn and move Backspace down one row. I soldered two extra switches in place of the Backspace key and also have one extra Fn button next to the right Shift since the GH60 supports these extra switches.