How do I get a Save As… option always appear in my Apple apps without using the OPTION key?
The easiest workaround is to actually create a custom shortcut for Save As… using the same keyboard shortcut as the Duplicate option. In other words, don’t use the default keyboard shortcut of shiftoptioncommandS, but change it to optioncommandS instead.

You can do this as follows:


Go to Apple > System Preferences…
Click on the Keyboard preference pane
Select the Shortcuts tab
In the lefthand pane select the App Shortcuts option
Now click on the + button
Ensure that All Applications is selected for the Application field
For the Menu Title field type in “Save As…”
Click on the Keyboard Shortcut field and now press the optioncommandS keys (remember, this will totally replace the Duplicate option from appearing in the menu). 
Now click on the Add button   


Now you’ll have the Save As… option by default in your various Apple app File menus.