Folders in PL5 Photo Library

I read somewhere in these forums that it was possible to create a new folder from within the Photo Library. Is this really possible and if so is it only on Windows? I can find nothing to support it on Mac.

From page 36 of the PL5 user manual;
To create a new directory (PC only), right-click on the folder to which you want to add a folder and select the option Create a folder in the context menu. A folder called “New folder” will appear in the directory tree. To rename it, select the option Rename folder in the context menu.

…which means that it’s not available on Mac.

Indeed…

That’s a pain. Why not I wonder?