Selecting Track as audio source

[pedjas]

I want Audio Wave to react to all audio coming out of OSB, not single audio source. I can select only single separate audio source or Desktop audio.

Single audio source is not useful as it links only to single audio source. I want to link to a mix of all sources within OBS.

Using Desktop audio grabs all audio, even that is not part of OBS and also changing desktop audio level messes up visualization.

In OBS we can mix multiple audio sources to single track (Advanced Audio Properties). Can we have tracks as options to select? That would be actual mix I want to have as source for Audio Wave.