Hello Hollister, Don,
Thank you for posting in Q&A forum.
You can create a custom attribute and add a custom attribute to an AD object as below.
1.Open MMC.exe-click File-click Add\Remove Snap-in-click Active Directory Schema.
2.Right click Attribute container- Create Attribute.
Tip – In order to open active directory schema snap-in you need to run command regsvr32 schmmgmt.dll from the Domain Controller. After that you can use MMC and add active directory schema as snap-in.
3.Check Multi-Valued option.
4.Click Class container- find group-open group Properties-link this custom attribute to group by click Add button and find this custom attribute and select this custom attribute, then click OK.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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