Merge-OpenXmlDocumentComment
This cmdlet merges comments from multiple source OpenXML WordprocessingML documents into a single document. In the blog post, Merge Comments from Multiple OpenXML WordprocessingML Documents into a Single Document, I discuss some aspects of the algorithm, as well as introduce the following screen-cast that walks through the use of the cmdlet.
The algorithm for this cmdlet uses an approach that is similar to that of Set-OpenXmlString.