nautilus: dockable panels as in dolphin

[sreekar guddeti <colonel sreekar gmail com>]

hello,
i have 2 questions
1.is there a functionality in nautilus to have dockable panels just as in dolphin file manager (http://dolphin.kde.org/images/all_features.png)
2. i would like to know if there is a method to have a bookmark mode of a
menu item listing the file hierarchy of linux in a panel of gnome,
similar to the system > preferences .... thing
thanks in advance

-- 
Sreekar Guddeti