Library viewer

Hello,
i would like to know if it's possible to have a separate library viewer. i explaine. if you have 50 folder with 60 clip, then it's very difficulte to look the thumbernail because we need to scroll down a long time to check all clip.
can you make a folder group in up of the windows and when we clic on, only the clip of this folder are visible on the windows.
the top is that was possible with command in DMX.
then this viewer was open on screen control when we program.

thanks a lot

Yves