Co-authoring means multiple people working on a document at the same time. Documents opened using MacroView DMF allow native Word co-authoring functionality, such as tracked changes when a user presses the Save button. The MacroView AOI functionality becomes available when the document is closed by the last user in the co-authoring session. This user controls the version and any comments it may contain.
If you are interested in more details and other enhancements and bug fixes, visit the MacroView Help Centre.