1,2,3,4,&5 are for cue points corresponding to deck 2 (lets call this the rhythm deck as opposed to lead deck)

A,B,C,D,&E are your lead deck's cue points

x, y, and z are for automatic effects (like "drift" or "absorb")

use the big "encoder" to scratch/find your place in the record

left thumb handles effects, which are labeled pretty clearly (echo, flanger, and gate being the 3 default FX)

effects that you can adjust are active only WHILE adjusting.  (set to hold-mode in djay).  thinking of changing the way these are manipulated