Rob (Reo's creator) doesn't care. It won't be covered under warranty, but he will replace the button for you. Give him a call or shoot "redeyedancer" a PM. You'll probably have to pay for shipping, but he's awesome at customer service and doesn't try and nickle and dime his customers to death. Or just ask him which buttons he uses now and where you can get one if you want to do it yourself.
later,
Ken

