Thanks for this.
Sometimes I just need to remove it temporarily from one window (if I'm short of screen space) while I work with files, esp if I'm using extra-large icons for example, then have it back.
I know I can use the border-slider, or the menu, but is there an icon or shortcut key for this, or a way to create an icon or shortcut key to do this?
As a second prize, would there be if there is a way to set the navigation pane to be hidden in just one window until I close it?