Basically that's the original reset button transplanted. The original power button is too big to fit into the lock's hole.
There's no clean way to mount the switch properly. I glued the switch to a 1/4" thick piece of plastic, and glued the plastic to the case. It doesn't hold as securely as I would like it, so I had to wedge something on the other side of the case (the air opening side) to make sure the switch doesn't move. It's ugly, which is why I'm not providing pictures
I saw a product once - looks like two strips of putty. You knead them together, and after some time they harden. Not sure what that product is called, but I think they might work better than what I did.
If anyone wants instructions on how to remove the reset switch without breaking anything, here they are. The switch is made up of two parts, the silvery button and the actual switch mechanism. Remove the front bezel. Push the silvery button in hard, until it moves in a little. On the other side of the front bezel you can see two little clips holding the switch in. Use a pair of needle nose pliers and very carefully push them apart. Using another pair of bent nose or needle nose pliers, pull the switch out. The button part will pop off. Be careful not to break those two clips if you want to restore the button in the future.
