Problem with Akai's MPD32 midi mapping to Traktor Pro

I'm trying to map my MPD32 with Traktor Pro and having problems because Traktor doesn't support NRPN messages. I can't figure out how to map my 360 knobs (endless) for browsing through my tracks in my collection/playlist so that when I turn the knob clockwise browser goes down and turning counter-clockwise should make browser go back up.

Now I have managed to map it only to work clockwise OR counter-clockwise (if set inverse in Traktor midi settings) but not for both ways as I ofcourse would like it to work.

Does anyone have any suggestions how to make it work? Or how have you mapped your playlist browsing?

Hey just an FYI. please read the forum guidelines before posting. The controller mapings forum is for finished/in progress mappings only. For questions and advice on mappings please post in general. thanks!