How to have multiple Firefox tabs with audio playing have their input and output set to different virtual audio cable?

Question

I believe I figured out how to work with a virtual cable. I have Firefox and OBS running, I can output the audio to OBS on a virtual line.

Windows Sound Settings:

As you look at the picture you see multiple Firefox I want to record and stream out with obs.

You see multiple Firefox icons and you can control the volume of each individual tabs open in Firefox. Meaning that if you have two tabs both generating sound like playing music you can control the volume of those tabs separately.

What I want to do is to control the input and output of those tabs separately but when I switch one of the Firefox icon that control one of the tabs volume it switch all Firefox icons to that input and output along with it.

How can I have those two icons that control the volume of each tab going into different output and input?