Per-project (application) default sound

Currently, on iOS (at least) you can only set the default sound for the whole Pushover app, but not the individual application channels within it. Eg. I have a few apps and would like each to have a default unique sound (from the default list). I know I can configure this in the code when sending the notification, but it would have been MUCH easier to do this directly in the mobile app.

I've been a user and a customer for many years and feel this pain with each new app I add :)