You can use the Traktor timecode vinyl I did that before making the full step over to RB.
This is from an olrd RB version but should still apply: https://www.youtube.com/watch?v=Bqk1FxxzGVg
https://forums.pioneerdj.com/hc/en-us/community/posts/360049503492-Rekordbox-DVS-on-a-Xone-96-mixer-
Best to do this with Rekordbox 5. I'm not 100% sure that Rekordbox 6 works without a subscription on one 'hardware unlocked' devices.