Hm...
It will be good if Randomize operator have some kind of seed parameter and if we could sync between operators like we can do sync between Generators. Randomize operator will pick randomly but from the same position of the two or more groups.
segment Group1 (A,B,C,D,E,F) to Randomize1
segment Group2 (G,H,I,J,K,L) to Randomize2
segment Group3 (1,2,3,4,5,6) to Randomize3
Ouput segments (AG1) (CI3) (FL6) (AG1) (BH2) (EK5) (BH2) (DJ4) (BH2) (BH2) .........
Hope you understand me...
Best Regards