Good evening
Finally, I’ve found two MS Word features which are missing in Scrivener 
:
Here is the 1st:
Shift+F3 to toggle the Letter Case
In MS Word, if you place the cursor into any word or if you select any text, then you can press Shift F3 to toggle between the different Letter cases: Scrivener / SCRIVENER / scrivener.
If you write in languages like German, then it’s very useful to quickly change the Letter Case by pressing Shift F3.
This command would be very useful in Scrivener - at least for migrating MS Word users 
Kind regards, Thomas