How do I add Hill Descent Control (Mazda2 2008)?

Hi everyone, I'm new to this forum. I wanted to ask if anyone can help me activate Hill Descent Control in my mazda 2 de 2008. I have forscan and the related asbuilt files of the vehicle. Do you know which line of code you need to change to add this function? if you want I am attaching the files of my ecu. Waiting for news thanks!
 
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