Perhaps I need to put this in a ‘problem’ somewhere, but why doesn’t Steinberg update their UR824 Windows 10 WDM driver allow you to select something like 5.1 or 7.1? 
Pro Tools can control all 8 outputs through ASIO so ASIO is not the issue.
Neflix, Spotify, etc. have 5.1 content but you can’t play it through UR824 WDM.
I’m looking at solutions like JRiver and VB Audio VB-Cable to bypass the Steinberg WDM driver to allow this. But I shouldn’t have to. Why can’t this be done?