With the Basic licence you are not allowed to have more than 1 Department.
With the Advanced licence you can create other Departments (be careful - once a Department is created, it cannot be deleted). With either licence, you cannot create a new Partition.
I believe a standard eGain solution allows extra Partitions, but not so with the OEM solution from Cisco.
Why do you need another Partition? Departments give you what you normally need,
Regards,
Geoff