Home Assistant adds Duplicate to the menu for user-created dashboards in Settings. The new-dashboard dialog lets someone choose a name and settings before copying every view, replacing the manual configuration copying that was particularly awkward on a phone.
Internal navigation that points to the original dashboard is redirected to the copy when its link starts at the site’s root. Links retain their destination views and other details. Require admin and Show in sidebar are chosen in the dialog rather than copied from the original.