[jingai]

You could perhaps try getting Container.FolderName/FolderPath - I think what will happen is that will stay at the root path, but you'll be successively called on subfolders of that path.

A hack, to be sure

I'd have accepted that hack, but unfortunately it doesn't work that way -- FolderName/FolderPath is set as if the user browsed to it. I have been unable to find anything unique from the Recursive Slideshow function.

If there is nothing currently that can identify this, would it be possible to set a property or something that plugins can check?

-j