Note 4 Twitter Notification

[MrMELTDOWN]

I have a Note 4. My problem concerns my Twitter app. I've changed my notification sound several times before but now I'm trying to change it again and I can't find the option. Does anyone have a clue?

 

[B. Diddy]

Moved from the Android Apps forum to the General Help forum, since the former is intended for developers to promote their apps.