Reply to LPD 8 sample mapping like Roland SP404 ?

Hi guys , I search since 1 month a solution to control the samples decks in traktor with my Akai LPD8 like a Roland SP404 (I hope you unterstand what I mean , when we push and release a button the sample is playing and we repush the button then the sample back to the beginning et replay) ... without success.

So please how to map this ?

Thank's for your reply and sorry for my bad english i'm a young french ...