Importing can be done as long the bind user has write access permissions. The "cn=Directory Manager,o=..." has permissions to add, modify or delete. It should be used in the Credentials account list on the LDAP Administrator. For the Directory Manager, this is aliased to the name "manager" and the Directory Manager password must be used.

Group Import 

The installation area (default c:/Program Files/AEDir) contains a file "stooges.ldif" using either the LDAP Administrator or the Directory Manager, import this file. The LDAP Administrator can be used to verify the group and members: 

10,000 User Import

Using the LDAP Administrator, import this test LDIF file: airius10k.ldif