UR44 and Traktor

So I need a sound card for my production and mixing on two chanell with Traktor. Can I configure 1&2 and 3&4 for Deck A and Deck B? I undestand that main out equal 1&2. I think 1&2 is the maximum volume like 3&4 out, with no adjustment knob like main. 1&2 and 3&4 are equal in volume out. Can I make individualy adjustemnet from mixer for volumes?

And another question. Can I use in Ableton, my cue on one of the phone outs? Not on 3&4.

Thanks!

Can I make individualy adjustemnet from mixer for volumes?

Yes, you can set the volume and pan independently for Mix1 and Mix2.

And another question. Can I use in Ableton, my cue on one of the phone outs? Not on 3&4.

No.
1&2=Phones 1 (Mix1)
3&4=Phones 2 (Mix2)