Kontakt rex issue. Need sum help!

[Fabrik]

My problem is...
I dont know how to assign different rex slices to different keys in kontakts mapping editor. I hope U understand whats my problem. I need that shit so I can adjust speed of each slice if its off beat. Help someone. Thanx in advance. Peace yall.

 

[Fabrik]

Anyone, please guyz!
Im all alone here. Peace.