How to import workstations into different containers

Hi there. I'm running Zen 6.5 latest patches. I have many offices with
different a naming convention to differ each location. Some office are
on a DSL connection which connect through a Cisco Concentrator. My
question is: Is there a way to import each workstation into different
containers (each having it's own "office" container), rather than having
them all import into one single container?

Thanks in Advance...

-Joe Rizo