Work Item import - how to include one or more subscribers as part of the import

According to https://jazz.net/library/article/69, it is possible to export "Subscribers" to a CSV. I'm trying to do this to see the column syntax that RTC will want for the import. But I cannot find the Subscribers field to include in the query that I'm using for the export.
My ultimate goal is to be able to set 2 or 3 subscribers per WI during the WI import process.
Comments
Michael Taylor
Aug 26 '15, 2:02 p.m.I am able to import a person into the "Created By" field. The "Created By" person is automatically set as the only subscriber.
Is there a way to import one or more subscribers different than the "Created By" field? What field name would be used to import subscribers?