I download win-capture-audio but I still can't manage to get two seperated audio track working (Mike & Browser)

[Niu DaVinci]

https://www.youtube.com/watch?v=TivHhlKiABU I followed the steps and troubleshooting here.

the best I could do was to put them both on track 2 and I could listen to the audio from the desktop and the audio from the microphone.

I want two separate tracks, how do I do this?