Want to use the search function to search for a file，Pressed the wrong hotkey press F3，File browser suddenly divided into two，This was surprised to find "extra pane" feature this。
Although previously there is a label in the file browser function，But I have been useless to，Probably not used to it，Always used to go to open a browser。Additional pane function is very suitable for use in making data compilation or comparison，Directly about the drag，Very intuitive and practical。
This function does not know the 10.04 have long been，Really more and more humane
。
