Hi!
Clone Existing was one of the best features when it was introduced. Finally we were able to quickly start with a page (document) that we knew for sure was the latest live version to be re-used.
Starting with a template is not as nearly as good, because in practice, templates get outdated.
Maybe I just’t didn’t found this option, but if it really isn’t there anymore, I strongly believe that it must be present as an option to start a new page.
Thanks!