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

Cubase
#1

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.

#2

I’ve created a feature request a while ago

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

Was Visibility Config Lock / and or / Mixer Lock Added to Cubase 11? - Plus - Individual Track Lock