How do I create panes within a Nautilus window?
This morning my cat discovered a Nautilus feature I wasn't aware of. By sitting on my keyboard she split the Nautilus window into two panes. I am now at the office without my cat and unable to repeat the procedure. Is there a way to achieve this without a cat?
Open Nautilus and press F3.
Or View-->Extra Pane As in the picture.
In addition to the F3 key press, you can also open the extra pane from the menu via mouse. View > Extra Pane.