iLO Powershell Cmdlets - How to add directory groups?

I have successfully set the iLO controllers to use LDAP using

Set-HPiLODirectory -Server $_ -Username $iloUsername -Password $iloPassword -LDAPDirectoryAuthentication Use_Directory_Default_Schema -ServerAddress $LDAPServer -ServerPort $LDAPServerPort -UserContext1 '@corp.domain.com' -DisableCertificateAuthentication

Now LDAP is enabled, but not active.  How do you remotely add an entry to the Directory Groups table in the User Administration section?