The “Save As” menu option is hidden in macOS Mojave. Apple would prefer you “Duplicate” the file to make changes. That may be more intuitive for new users, but it’s confusing if you’re used to “Save As.”
“Save As” Is Still There
This option never left the file menu—it’s just hidden behind the Option key. In fact, Apple hides quite a few menu items behind the Option key without any visual notice. Try opening up the Apple menu and holding down the Option key. You’ll see many of the menu options change into different, related options. For example, “About This Mac” becomes “System Information.”
RELATED: Access Hidden Options and Information With Your Mac’s Option Key
This helps keep the menu clean but makes it difficult to find these options. Some people will think “Save As” has been completely removed—but it’s still there!
You can still use “Save As” by either:
- Holding down Option while you have the file menu open (which will change “Duplicate” into “Save As”), or
- Pressing Command+Shift+Option+S directly (the shortcut for “Save,” plus the Option and Shift keys)
Both options are a bit cumbersome, but the functionality is still there:
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from How-To Geek https://www.howtogeek.com/407982/how-to-get-the-save-as-shortcut-back-in-macos-mojave/
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