Hi Nik00n,
I've got exactly the same RSI problem and never use a mouse. What I don't understand is why Hex didn't use the same system as C5, this would have been better than relying on users having a mouse. Not like Eovia to miss this. I posted my request here:
http://www.eovia3d.net/showthread.php?t=7139
Anyway full customisation options like Silo get's my vote too. I'm sure Eovia will add this at some point.