Reply to Cue X-Fade in Traktor?

I know that it's complicated question, but I'm going to try explaining it anyway. I recently got a Novation Nocturn for my effects in Traktor Scratch Pro, with Hercules MK2 as my main controller. But since Nocturn has a second crossfader, I thought I might put it in good use.
I have always wanted it, but I haven't had a spare MIDI-Crossfader before. So here is my problem:
I want to use the second crossfader as a normal crossfader between 2 traks, but only in headphones. So Only I could hear it. One way is to assign 2PFL buttons for monitoring two traks and assign the crossfader as a Cue/Mix fader, but I want only crossfader action, because it saves time and buttons. Maybe assign it as somesort of a "superfader" so if it's full left it cue's left track and moving fader to the right changes cue/mix and when it's over 50% it will change cue to right track and from that on will change the cue/mix?
EDIT4: I just noticed, that A&H Xone:22 has the feature I want to use in Traktor Pro, here's a pic for what I mean:


Hope you know what I mean and sorry for my English, because It's not my first language.

EDIT:
I have few problems more:P

2.I might also ad another problem here. What setting do I have to apply if I want a LED to light up when a pitch/tempo fader is NOT 0.0%?

3.Is it possible, to put a LED blinking, at the track end warning, because at the moment it just light's up:S Maybe even blinking at the beatmarkers?:P

4.Is it possible, to put a LED blinking when CUE'd up, like, when I cue up, press CUE, then it blinks, and when I press play, it stops???

5.At the moment my Play/stop button just lights up when I'm playing the track, Is it possyble, to set it blinking to the beatmarkers WHEN I play the track, not paused? I manadged to get the led blinking to the beat markers, but if I scrub through the track with jog-wheel, it still blinks at the beat markers, but I want it to only blink, when the track is playing.

6.I recently got a Novation Nocturn controller and I wanted to use 3rd page buttons for Cue's. I mapped 1st and 5th button as Grid Marker button in Traktor Pro and 234 and 678 as Select/Set+Store HotCue and same out's as HotCue X State, because I would want LED to light up when I have Cue on that button.

Please help me, I have posted it into the NI community s too, but no response there:S

EDIT2:
Solved problem nr. 5. used the modifiers to set it blinking only when track is playing, and when it isn't the LED is off