The menu option "Save As" is not visible in macOS Mojave. Apple wants you to "duplicate" the file to make changes. This may be more intuitive for new users, but it is confusing if you are used to saving as "save as".
"Save As" is still there
This option has never left the file menu, it's just hidden behind the hidden key option. In fact, Apple hides some menu items behind the Option key without visual notification. Open the Apple menu and press and hold the Option key. Many of the menu options change into various related options. For example, About This Mac becomes System Information.
RELATED: Accessing hidden options and information with the Option key on your Mac
This helps keep the menu clean, but makes it difficult to find these options. Some people think that "save as" has been completely removed – but it is still there!
You can still use "Save As" by either holding down
- while you have the File menu open (which will change) "Duplicate" to "Save As") or
- if you use Command + Shift + Option + S press directly (the abbreviation for "Save" plus the Option key and Shift key)
Both options are a bit cumbersome, but the functionality is a bit awkward is still there:
Command + Shift + Option + S is not the abbreviation you're used to. It was changed by Command + Shift + S, which was renamed to Duplicate. A four-key shortcut is a bit long for such a useful function, but luckily we can make it easier by hacking it back into the File menu.
Restoring the keyboard shortcut and the menu item
If you accidentally duplicate the file by pressing the old shortcut "Save As," you can manually reset it in the macOS keyboard settings. Go to Apple Menu> System Preferences> Keyboard and click the "Links" tab.
Click App Shortcuts in the lower-left corner of the list. This is the addition of overriding shortcuts to menu items. That's exactly what we want. Click the "+" button below to add a new link.
Next, make sure your new shortcut is set to "All Applications". So it's a system-wide change. Type "Save As …" in the "Menu Title" box. This must be exact and in capital letters and otherwise not work with three points at the end.
Finally, click on the "Shortcuts" field and press the old shortcut "Command-Shift-S". Alternatively, you can enter a different key combination that you prefer for this action. Click the "Add" button and you're done.
Note that this overrides the default system shortcuts. If you use a keyboard shortcut that is normally used for something else, your Mac disables the old keyboard shortcut in favor of the newly added one. For this reason, the "Duplicate" link will be overwritten. However, you can still duplicate files by clicking the item in the menu bar. This will disable only the keyboard shortcut. If you want to set a new Duplicate Link, you can create a link from this screen to which you have also created the Save As link.
Now you can see again "Save as …" menu under "Save" with the same old link. This only applies to apps with the Save As feature. If "Save As" does not appear in the menu of an application and you keep the Option key pressed, "Save As …" is probably misspelled when creating the shortcut. Go back and check it again – it has to be accurate.