Is there a way to lock visibility of each mixer? ie, adding new tracks will add them to all mixers

I have mixer 3 set up in such a way that I pretty much never want it to change, however adding new tracks in the project, they will pop up in this mixer as they will in the other ones as well.

I’ve created a feature request a while ago

https://www.steinberg.net/forums/viewtopic.php?f=285&t=163536&p=875581#p875581