Reply to Help!!! I need an adult!!!

So I've spent the past week figuring out how to map my Numark Total Control to control 4 Decks. I still can't figure out how to create a button that makes an alternate command so I can work decks C and D (similar to the VCI 100 mapping on this site). Is this even possible? It must be if it's on the VCI100 mapping. any tips or links or videos are greatly appreciated.