Kontrol S2 sampling issues in Traktor Pro 2.5

Hello I am pretty new to djing and am having some issues with my sample decks in traktor. I have a kontrol s2 and whenever i load samples into the available slots the play back form when i push the cue buttons is kind of a toggle format meaning that when i hit one of the buttons the sample will start playing but then when i hit it again the sample pauses and then if i hit it a third time the sample starts over. I am trying to make it so that the sample plays only when i have my finger on the button and i can't seem to figure it out. Any tips/suggestions on this topic would be much appreciated. Also if there are any uber experts out there I was wondering how I would map this sort of thing into a Korg Nanopad

Thanks Alot!