Reply to VCI-400 Ean Golden Scratch/Search problem

Hi so i just got my VCi 400 and installed the DJTT mapping but it seams i dont know how to get the scratch function all it does is change the pitch by slowing it down when i move the job wheel.....what is the scratch ON button? im pressing the vinyl button but scratch does not turn on
some help to map the snap and quantize buttons would be awesome too thnxx