I want to set up two microphones but I can only choose one at a time how can I choose two at the same time?
Audacity will only record from one device, and you plugged in two different devices.
Audacity doen’t support ASIO or any of the ASIO variations.
You might be able to mess with the computer sound pathways with a program such as Voicemeeter.
https://www.vb-audio.com/Voicemeeter/index.htm
Koz