[jQuery] Can UI Sortable create additional levels?

[jQuery] Can UI Sortable create additional levels?


UI Sortable seems a great tool but to be sure it suits my purpose I
need to know if it implements the possibility to create further
levels, ie if an item is dropped over another item, it would be nested
in that one. The demos I've seen don't work that way but it would be a
pity (and even a bit absurd) if it couldn't be done.
Thanks
Nicolas