I think this is a pretty simple concept. I have one sound card and one pair of bluetooth headphones. I want to play my audio through both my sound card and my bluetooth headphones.
I believe Windows has checkboxes allows you to "check" outputs to enable/disable them, but Ubuntu seemingly has the equivalent of radio selectors (you can only select one at a time).
Bonus Question: On a similar note, I have 5 analog output channels on my sound card (in addition to my digital & HDMI audio) -- I would like to be able to determine what comes out of each of those ports (e.g. "front speakers" on all 5 or "front", "center", "back", etc).
Thanks in advance!