Iím sure you could swap panels and boards to make the sport button a button. However, if the ecu doesnít know what to do with the input, it wonít go far. Similar to adding cruise control, youíd have to make the ecu recognize the button for it to work.
The question is if thatís something you can activate or deactivate with TechCenter. Im not sure, so hopefully someone with more knowledge can answer that question.
Sourcing the buttons would be the first step after finding if you can program the ecu, donít know how pricy those things are.
2013 Evora IPS - Carbon Gray
2016 BMW 328xi - Estoril Blue