How to clone regions from panel?
Panels supports cloning/exporting the whole panel page, as well as individual page variants. It doesn't support cloning/exporting individual content panes (afaik)

However, you could potentially do it manually manipulating the panel export code.

e.g:


Export source page with new panes to clone
Copy desired pane definition from code export
Export target page to save into
Copy pane definition back into the desired section of the export code
Reimport the exported target page.


Manual, but something like that would work. You could also do it programmatically with the ctools/panels api.