Yamaha Expansion Manager feature?

[fantomx2019]

Hello.
I have searched on YEM, but I don't know if it exist ,or not , a feature.
To make an element be a "key off" sound.
I want that element to sound after the key is released.
Is this posible in Yamaha Expansion manager , for Custom Sounds, that use custom wav?

Thank you.

[Normanfernandez]

You can't create a release trigger on YEM