Add items to file context menu in GNOME shell

[Per <pmknutsen gmail com>]

I would like to add a menu item to the context menu that appears when you right-click a file in GNOME Files (nautilus). In older versions, you'd put a script in ~/.gnome2/nautilus-scripts/ (or something to that effect).

I need to do this when launching a GNOME shell extension.

What are the available methods to me? Any pointers to resources appreciated as my Googling has yielded nothing.

Thanks,

Per