Copy pages between sites

I'm writing some privacy policy pages for some sites, they're made from many content elements which can be enabled or hidden.
The pages shall be copied from one site to another, and doing manually content by content is slow and error-prone.
Is there a way to export a whole page (or page tree) with articles and re-import in another contao site ?

You might want to try this extension: https://github.com/menatwork-ia/clipboard (https://contao.org/en/extension-list...pboard.en.html)

However, I don't know if the extension still works correctly under Contao 4.

Ah, thank you!
I searched for such a package, but couldn't find it.
I'll try it asap!