This can be done in AutoIndex however you will have to make a SQL script that connects to the file cabinet and concatenates the fields into a new column value. Then you may choose that column to populate the field of choice.
Multi-Factor is supported thru <strong>Azure AD</strong> or <strong>ADFS</strong> and is set up in those external authentication methods. DW simply relies on them to allow a user before it allows a user to login.
Using your script worked well for me. You could replace Clear-MsmgQueue with Remove-MsmgQueue which is more like what DocuWare does with the Message Bus Tool. Also, it is important for this same line of code to be run as the user that is set in the DocuWare service or the clear/remove will fail.
Groups within groups works. Are you using the Admin Tool or The User Sync Desktop App to set his up.
Keep in mind that if the users are in a child domain, it will not work. Only users listed in the connected domain level will synchronize since the pointer to their user attributes are located there. In this scenario you would have to set up a sync at each domain level.
I had a similar issue where i was using AutoIndex and the LDC connect kept disappearing. Turn out that the advice was to uninstall the current version of the LDC connector and reinstall the connector again. Seems there may have been a bug. Mine was a v7.3 system.