To Create a Backup Copy of a Collaboration Project
In the Project Manager, select the top level node of your collaboration project.
Right-click and click Create Project Backup.
(Optional) In the Plant Project Backup dialog box, click Change to specify a location of the backup copy.
Click Backup Project Now.
Note: All the files to be backed up must be closed before the backup starts. A dialog box prompting you to close any open drawings is displayed if necessary.