Reply to replaced DDM4000 for VMS4?

Hello,
I Would like to get into the mix with 4 deck.
Because with the DDM4000 I mix in 2 deck with sampler, so I was wondering if the VMS4 would adapt for 4 chanel mixing

Currently I have two DJTech Kontrol One with AUDIO 6 DJ and DDM4000

If the VMS4 is suitable. How should I do to use it with Traktor?

Thank you in advance

DJulius