Destroying versions
You may destroy versions of a document if there are no technical reasons that forbid destruction (e.g., if there are branches originating from a version).
•
Select 
to bring up the ‘Destroy Versions’
form. The form shows a table of all versions that you are allowed to destroy.
• Select the version you want to destroy and make sure to deselect all versions that you do not intend to delete. Confirm with [OK]. Note that destroying versions is irreversible.
When you destroy all versions of a document, you revoke version control, i.e. the document becomes a normal document again.