Export and import of portals
If you are in the "Start" module, a portal with all data can be exported via the main menu "Portal / Export portal" or "Export portal" option, or "Import portal". To do this, you must be logged in to the portal and possess the appropriate permission "Administer portal". Portal exports can also be scheduled in the "Tools" module.
You can find more information about "Export portals" here.
You can find information about "Import portals" here.