Hi @BennyB,
First of all, welcome to the Community! I’ve moved your post to a new thread since it’s a slightly different question about mapping the effects on the Numark Scratch.
First, I’d like to confirm that you’ve already had a close look at our detailed instructions for editing the MIDI mapping in djay, which you can find in our FAQ:
Please let me know if you’re still having trouble, and I’ll be happy to help.