Just a simple technique to get a scratching sound.
What i have done here is to add a 0S00-0SFF as a phrase (this is for the sample to keep the beat), then i used LFOs to modulate a volume and pitch macro and mapped those to hydra to collect it into one slider.
Edit: version 2: Added a slightly more advanced versions with a dj filter and distortion…also added another example song with some different techniques mixed up into some pretty wacky stuff. :P