I used to use arrow keys, but that was very impractical because of distance from hotkeys and bumping around with mouse was weird for me.
So I copied/modified some Autohotkey snippets and now I use WSAD + clicking on minimap for moving around and Shift + WSAD to access underlying hotkeys (the new grid ones).
It's quite awesome and I recommend to try it.. (I can post my version if anyone is interested..)
PLEASE post how to change the hot keys. This is a continous problem. There used to be an "bridgerS" hot key guide for COH1. I don't know if anyone has that or if it works with COH2.
But hopefully RELIC will maybe listen to add this support. Espc. since default hotkeys are not laid out great. would be good for new players to be done by JUNE!