The "Duplicate" command still exists for Invoices, so removing the simple feature of duplicating estimates seems completely arbitrary at best and an outright mistake at worst. Could the Community Team please stop trying to frame this as a feature suggestion that users must now plead for (and if enough people complain, it might return), when it's clearly an oversight or a cutting of corners on the development side?

That said, I'd love to be proven wrong on this and read the rationale, usability testing or user feedback that prompted the Product Development Team to remove a single, very basic feature from the Estimates dropdown that still remains for the Invoices dropdown.