I want to set up unique Notificaton Sounds for some Apps on the Samsung Galaxy S8 Plus. However, there are only three unique notification sounds I can set up . . . Messsages, Calender and Default (which gets applied to all others). All the forums say look in each individual App and click on the settings and then choose the sound you want for that App there. But none of the apps have an option to define the Notification sound, only an on/off button to confirm if you want a notification sound. Why is it not possible to set up unique sounds for each App?