Downmixing 5.1 to Stereo in Unity Editor

Hello,
In Unity I have no settings to use 5.1 banks in the editor. I have this setting for specific platforms, but not for the editor, as you can see in the screenshot below.
Right now we have 5.1 banks that work fine in builds but are downmixed in the editor and it would be useful to test 5.1 directly in the editor. Is there a way to achieve 5.1 in Editor? Am I missing something obvious?

Hi,

You will have to change the setting for Default which has the Project Platform

Hope this helps!