Remember how we could change the windows in our old amigas? taking them with the mouse at the top of the screen and making them slide down, possibly composing the screen with different windows ?
That's what i'd like to have with tabs in a lister
I'd like a pony.
I'd like a new head. 
Very, very hungover.
It was the pony, wasn't it?
And what you think of the pony ?
Nay!
I'm not sure I understand the idea. Do you mean you'd like to be able to have more than two file display panes? Or something else?
I think he's talking about Amiga's screen's. You could grab the title bar and pull the screen down to reveal the screen behind. In this case the idea being you'd grab the tab and pull it down hence you'd convert the lister to dual horiz (sort of) and show both the current tab and the tab/s behind.
Thanks Tanis. that's exactly the idea.
but it could work too with dual vertical .
You can already right-click tabs and select Open in Dual, and once the dual side is open you can also drag tabs to the other side. Not quite the flashy UI that you have in mind but might be useful if you didn't know you could do those things already. (Apologies if you did already know!)
i knew nudel and i too have a button for that. it's an other proposition to have more than two folders visible in only a dual lister.
And now everyone (but Jon) seems to understand, could anybody explain me this pony story ? 
Make yourself some stripped style with just file list, then glue a few windows into a layout and here you go- lots of folders opened ath the same time.
jon, you can't have a pony.
X.