This feature is available from version 1.9.2
One or more project configurations can be exported to a YAML or JSON file for backup, versioning or migration to another server. The exported files can then be imported into the same or another Continua CI server. You can choose to import over existing configurations, or to import as a new configuration.
The Import / Export functionally is accessible in the Continuous Integration section of the Administration area of Continua CI.