If, for whatever reason, you wish to re-run the Workbench Setup Wizard then simply delete or rename the config.yml file in the Workbench directory - usually /opt/dm/mci UNIX or C:\dm\mci\ WINDOWS .
Note that this process will overwrite your previous Workbench configuration. Once you’ve deleted/renamed the config.yml file, restart the Workbench service:
$> sudo service dm-mettleci-workbench restart