More than two lister in one popus-window

Hello,

is there a posibility to create a opus window with more than two lister?

Terminology note: The top-level window is the lister. Within that you can have one or two file displays, each of which can contain multiple folder tabs:

There is a limit of two file displays (i.e. two visible folder tabs) per window, but you can use Layouts to save and restore multiple windows at once when you need them:

Thank you