When I try to export files (which are 320 audio) to Mp3 or Mp4 format, via MEP (2026), the highest audio-rate displayed in the drop-down menu = 192kbs.

This seems quite bizzare, as exporting at 256/320 is an extremely basic feature, that you'd expect from literally any/every editing program...

But so how exactly do you export into Mp3/Mp4 format, using MEP, retaining 320 audio bit-rate?