[389-users] Synchronize Active Directory custom extension attributes to 389 DS

Hi, Using WinSync, is there any way to synchronize Active Directory custom extension attributes. Here is what I read from the Red Hat documentation: Only a subset of Directory Server and Active Directory attributes are synchronized. These attributes are hard-coded and are defined regardless of which way the entry is being synchronized. Any other attributes present in the entry, either in Directory Server or in Active Directory, remain unaffected by synchronization. Is this meaning that we can't synchronize Active Directory custom extension attributes ? Is there any workaround to make this work ? Thanks in advance for your support.