Which lister runs when i click on my Computer

I turned on integration with my computer, so when I click on THIS PC (windows 10) a lister opens. Love that. I want to add some tabs but when I add them I cant save the lister as I don't know which lister runs at that point, I think if I save it to default that's not the one that's called when I click on This PC

any suggestions as to what I am missing here?

Save to the default lister (Settings > Set As Default Lister), and turn on Preferences / Launching Opus / Explorer Replacement / Open all Default Lister tabs when opening a new window.

I am using Dopus 12, that choice is not available under Explorer replacement

It should be. You have to turn on the parent option as well for it to be enabled (Open external folders in a new tab).

Perfect. Thank you