Powershell for Unix Attributes - add NIS members to group

Hey Scripting Guys,

I have the abliity to mass add Unix/Linux users or groups to Active Directory, but am having trouble coming up with a way to add users to the groups.  One issue with this is that the GUI would show the information, but until I pulled them out of the NIS domain and reset the user/groups back into the NIS domain I was not allowed to add the users to the groups.

I think it should be along the lines of a Set-ADObject for both memberUid and msSFU30PosixMember, but would like help with the command.  This would be a lot easier if the Unix Attributes tab allowed cut/paste for the samAccountName, but it looks like it only allows selection of the user by name if they have Unix Attributes already set.

Thanks

DG