When exiting directory opus via the "x" on the top right of page,i notice many other Listers need to be closed. Please I do not want other Listers to open behind the first Lister
Kindly advise

The first thing to do is work out when and why the extra windows are opening. They don’t open by themselves, so it must be in response to an action.

This is especially true if you’re using the Light version (according to your account linking), since Light won’t open windows in response to other programs or saved layouts. If you’re using Pro instead then there are some extra possibilities for what’s opening the windows.

I am using pro
What are the extra possibilities I might be using
Please advise

Other programs can cause windows to open, and multiple windows can be remembered and restored via layouts or (if not closed after use) across restarts.