Rendering final audio output using B-format (4 channels)

Hi all,

New to the Unreal Editor. I am trying to figure out how to make the main audio output from the Unreal Editor a B-format 4-channel output that can be then decoded externally to an arbitrary number of loudspeakers. I am not looking to import an ambisonic recording. Rather, I want to take whatever scene gives me (which will be populated by spatialized audio sources) and encode it to the aforesaid 4 audio channel B-format, and have it outputted as such on the first (or any) 4 channels on the connected soundcard. So far, I saw how you can use ambisonic sounds to have them rendered in a headphone-centric way, but nothing that shows (or that I could comprehend) that does what I outlined above. Thank you.