We know many people complain about the one button Apple Pro Mouse. Well, could Apple make two button functionality in the Pro Mouse? Would a second button be possible as the first button, pushing lightly forward, with pushing lightly backward? Then, people who don't want the second button functionality, you would be able to open the button like you do now to tighten/loosen the button clicking or replace the battery (BT). Just a little switch and it would prevent the back from being pushed down. Would it work?