.sf2 files in FL Studio, How do I adjust the release time ?

[Alone]

How do I adjust the release time for a .sf2 file in FL Studio ?

Exmaple:
I have a string.sf2 or any other .sf2 file loaded up in my pattern sequencer, when i press the keys in piano roll, it plays, but there's a release/decay/sustain time,
I want it to stop/cut off right away as soon as i release the key in piano roll.

I know how to do it if its a .wav file, by adjusting the release time, but as for a .sf2, how do I do it ?

 

[Solacerodgers]

I do not use fl but most daw's load the sf2 into a sampler or other instrument for playback and im sure fl does the same you would just need to open the window with the vsti and find the release envelope.