I am using Catalina in my 2015 MacBook Air, and I have an iPhone 8. Understand there might be some connectivity through Finder. In Finder Preferences there is a button for selecting "CDs, DVDs, and iOS Devices"; this button is checked. However, no "CDs, DVDs, and iOS Devices" option appears under Sidebar Locations. Is this correctable? What benefit is there with this option?