Is it that only 1 notification sound shows up when you go to change it? Or is there no option for this?
Also, a lot of the applications that do use notification functionality also usually allow to change it to a different notification sound (as long as there's other sounds available to select from of course)
You can usually add sounds by placing them into /mnt/sdcard/media/notifications or whatever the writable location for your phone is.--
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