Disable control-clicking that opens new lister?

Hi: I can't find anywhere in the docs, forums, or 'preferences' how to disable the feature where control-clicking on a folder in the tree automatically opens a new lister in Opus 10. thanks ...

In Opus Pro, Preferences / Folder Tree / Selection Events is where you can change what the mouse buttons do in the tree. (At least in Opus 11. I don't have Opus 10 installed at the moment to check if the same was available there.)

This isn't available in Opus Light, however.