[Zope] Copying and pasting Z Class instances

[Alexander Staubo]

What kind of magic trick is required to copy and paste Z Class instances
around in Zope 2.0.0b3?

I have some instances (imported from Zope 1.x, if that's relevant) that
steadfastly refuse to budge, giving the following error message instead,
on paste or import, or even sometimes delete:

	The object [object ID] does not support this operation 

-- 
Alexander Staubo             http://www.mop.no/~alex/
"He won a first at Oxford, squandered three fortunes, made love to a
thousand women, imbibed strange drugs, sold his soul for Rock 'n' Roll,
almost pipped Einstein for the Nobel Prize, was barred from every
Chinese
noodle parlour in West London and died penniless, at a Hastings
boarding-house in his ninetieth year."
--Robert Rankin, _The Book of Ultimate Truths_