Hi!
Just today, I had the need to clone / duplicate “Send” myself. And yeah, this would be a useful function. And it is an inconsistency, as you @DarioMor already wrote, to be able to duplicate vault items but not Sends.
(BTW, I will add the word “duplicate” in the title, as this is the word that’s used in the English version and can make it possible to find this thread better via the search - if you don’t mind)
Unfortunately, I have no votes left at the moment… 
PS: I would also like to add the link to the other feature request for “templates” / “profiles” for Sends: Bitwarden Send template (default settings)