Hide appointment details but time remains blocked as busy?
 

I want to input an appointment then hide the name of the appointment and the
details from view on the screen. I want the time to remain blocked as busy.
This prevents someone looking at my screen from seeing who my appointment is
with but they can see that I have an appointment during that time block. I
want to be able to turn this private hide feature on and off just as I can do
in Palm Desktop.