Use Wav files as a sound in FL studio

Did you downoad a sound and think, oh that sound have been cool to use on my midi keyboard?
And when youtry the sound is the same on every key on the midi keyboard.

Also some sounds do not sound good if you do that.

Well i found a way.
 

 It is  an Pad sound from a synth pack.

I have here a sound i want to use on my midi.

But when i play it it is same sound how i fix that.

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 I have found that if i play with this, then i get some amazing sounds.
Well that is it. Have a great day.