I need to import workstations into 3 different eDir contexts.
How can I obtain this?

Must I have 3 different "Server Package" policy packages,
associated respectively with 3 different servers,
all running their own "ZENworks Workstation Import" service?

And then have the registry on the workstations pointing to the
appropriate import server?

Or is there some smoother way?
Must I really have one import server for each import policy?
What if I have only 2 servers, and need 3 different import destinations
(eDir contexts) for the workstations?