Directory Opus and its windows

Here are some opened windows from Directory Opus:

When I click on the title bar of the maximized DOpus Lister the following windows don't remain in the foreground: File Types, FTP Address Book, FTP Log (from the utility panel), and Print Folder Contents. How can you stop this behaviour? And can the Folder Options window be minimized on the Task Bar?

Most of those windows are their own things, and not related to the lister that be used to open them. (Any more than if you used File > New Lister from one lister, it would make sense for that new lister to forever be on top.of the lister that opened it.)