Root Help remapping button.

I need to change a button, its the button on the far right that looks like a magnifying glass. (On the optimus v) When I push it right now it brings up "compose a text message" and I would prefer it to be something else. Iv been searching the threads and cant find a diagram. I know how to use Root Explore, to open up and change the keys but I don't know the number of that specific key. Does anyone know the number? Or is their a thread on it? Thanks


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Interesting! Mine just brings up the soft keyboard and the Google search bar.
Is that what you would rather it be?