Word 2016 for Mac uses the function keys for common commands, including Copy and Paste. If you want to retain the field code, but prevent automatic updates, lock the field by selecting it and pressing Ctrl + F11. Word will remove the field code, leaving only the text. Alternatively you can right-click any given field & select Toggle Field Codes from the shortcut menu or use Command+A to select all, then use that method to toggle all field codes at once. It isn't a setting within the document, it's an application setting:-) Use Option+F9 to toggle display of field codes on/off. Click the Office button and select 'Word Options' to turn off field codes by default. To turn off a field code for a specific field, click the field and press 'Shift+F9' instead. Press 'Alt+F9' to turn off field codes currently on the page.
Open the document where the field codes are displayed.
