IDEA: Explorer Bar Favorites always visible

[tmpusr]

I hate it when the Favorites is changed to Folders every time I open a new window. Internet Explorer remembers the state.

But the best solution would be
http://www.xyplorer.com/images/shots/catalog.png

I'd like to have the Favorites and Folders open at the same time, side by side, or like Xyplorer. No reason to ever lose sight of those hot folders, just like on OSX.  Favorites should also remember which folders in it are expanded, if you have a tree structure there.