This option applies only to HTML exports. For any given document,
there may be multiple document versions, identified by sub-IDs.
List the document sub-IDs, or sub-ID wildcards, separated by
semi-colons, that you want to add to the HTML export. If you leave
this field blank, all document sub-IDs will be exported.
For example: @unform will just export the PDF documents originally
added to the archive by UnForm jobs. @unform; scan* will add the
original UnForm job PDF's, plus any sub-IDs that begin with the
letters "scan". The names are not case-sensitive, so sub-IDs of
Scanned and scan01 would both be added.