If I wanted to remap the keyboard, where should I start looking at?

Hi guys, I am new to BlackBerry, I am on that situation where I don't even know where to start.

I want to change 1 or 2 keys on the BlackBerry Curve keyboard, if you could point me in the right direction, what should I be looking at?

My intention is to change the way two keys work, I want to assign the "Alt" key functionality, to the right hand side "Shift" key.

I am running a usability test and I need this solution temporally to continue my investigation.

I don't even know if this is possible.

Thank you for any help, link, comment...

Miguel Gonzalez.