How can i avoid many listers opening?

Sorry, i searched everywhere, but have no idea. On our other machine, new instances of listers keep opening. For instance, when i open a folder from the search results of windows, it will open the folder in the current lister. On the other machine it will open a whole new lister instead. Where is the setting for this, please?

This one? [Always re-use a single window instead of opening new windows)