I don't know, in Germany we don't have that button.
If you want to try it yourself, you can use the code that I've got so far:
https://gist.github.com/4007071
You would need to change the number "117" (which is the left quicklaunch button, 118 would be the right one) to something else. You can find out the keycode using the onKeyDown-Method and pressing the button.
Also you need to change the "some.package/some.package.SomeActivity" to the actual activity you want to launch. However I don't know a way to find out this information, yet, but I'm sure that there is some simple way to enumerate all activities that are available on the device. For testing purposes, you could just decompile the .apk-file of the app you want to launch to find out the package name ...
To execute the code, just place it in the onCreate-Method of some demo app and launch it.
My code is certainly not the nicest way to change these settings, so the solution mentioned by blk_jack should be the preferred one. If that is not possible for some reason, feel free to use my code to build a separate configuration app.