I have a notebook, e. g. "190427 Drei Hunde.nb", stored within the Wolfram cloud. It has Permissions Private as I can see from Details.
But I cannot change that Permissions to Public. Neither from the browser cloud interface, nor programmatically from within the notebook opened in the web interface "http://lab.wolframcloud.com/app/objects/wernergg/190427%20Drei%20Hunde.nb"
I think from within the notebook I should do something like
co=CloudObject[...[Notebook[]]]
SetOptions[co,Permissions->"Public"]
but I cannot find out how to create a CloudObject from the current notebook.