Where is the UV vertex pane located? I would like to follow a tutorial video. In this tutorial, the author uses the UV vertex pane:



However, I don't find it. 
How could I bring this pane up?

Thank you very much.
In the UV window on the left side, it's necessary to press N again.
Unless I do, the window on the left side doesn't have any pane.
What I thought was "the" pane was a pane of the 3D view window on the right side.