An archived version of a virtual document is called a snapshot.
To view a list of snapshots created for a virtual document:
In Documentum Administrator, navigate to the virtual document and select it.
Select View > Snapshots.
To create a snapshot:
In Documentum Administrator, navigate to the virtual document and select it.
Select Tools > Virtual Document > New Snapshot.
Enter information in tabs as appropriate.
Click Finish.
To freeze or unfreeze a snapshot:
Do one of the following:
Tools > Virtual Document > Freeze Snapshot
Freezing a snapshot blocks users from editing the frozen version of the document or the frozen version of each descendant. Any changes a user makes to the document or a descendant can be saved only as a new version of the document or descendant.
Tools > Virtual Document > Unfreeze Snapshot
Unfreezing a snapshot lets users again edit the document, and descendants without versioning. However, if a descendant is part of multiple frozen snapshots, then you must unfreeze all the snapshots to edit the descendant.