This mapping is a reworked version of this (https://maps.djtechtools.com/mappings/1336) mapping by JaJa Artwork, so all credit to him for the heavy lifting. All I've done are reworked the performance pads.

I've set this edited mapping up to work with modern Traktor Stems, and loosely based it on the layout of the Native Instruments Traktor Kontrol S4, since that's the controller I'm most familiar with.

This mapping was created on an Intel Mac, but I'd imagine it'd work with any device. 

-Make sure controller MIDI mode is on, then import the mapping. Once the mapping is imported, set all In-Port and Out-Port to your DDJ SX in Traktor settings.

Usage

Hotcues 1-8. You can delete hotcues by holding the hotcue mode button and then pressing the one you want to delete.

-Changed to beatjump controls 

-Top row: Beatjump -32, Beatjump -4, Beatjump +4, Beatjump +32

-Bottom row: Beatjump -1, Beatjump -Fine, Beatjump +Fine, Beatjump +1

-Changed to stems individual volume control

-Top row: Drum stem +15%, Bass stem +15%, Instrument stem +15%, Vocal stem +15%

-Bottom row: Drum stem -15%, Bass stem -15%, Instrument stem-15%, Vocal stem -15%.

-Stems in the top row will light up when their respective stem is at 100% volume, and stems in the bottom row will light up when their respective stem is at 0% volume.

-Top row resets stem volume to 100%

-Bottom row sets stem volume to 0% (mutes)

-Just like the slicer mode, stems in the top row will light up when their respective stem is at 100% volume, and stems in the bottom row will light up when their respective stem is at 0% volume.

The other functions should operate as printed on the controller.i There may be some bugs and glitches as this is my first time making a mapping, so please let me know if you run into anything and I'll do my best to fix it!

Also, if anyone is interested in upgrading this mapping please go right ahead! I'm not too knowledgeable about this kind of thing so any help is appreciated - particularly for addressing the controlling LED's since I couldn't get that to work well for the beatjump controls. I'd also like to figure out some way to add stem 'break' effects like Serato has, but I wasn't able to figure that out either. If anyone has any ideas or would like to port this mapping to include these features, let me know!