We make a few submix assets, then open one of the submix assets, and add the rest inside there, and connect them as well! Can choose settings for each. There is an even newer and better in-editor example giving the same results in the latest Arthurs Audio Blueprints!
Edit: also you are on 4.22? Then I don’t think I can help you. Stuff changes so fast these days!!! I would rrrrrrrrrreally try to get on 4.25…it’s good and solid!