How to Configure Start and Stop buttons invisible for Operator on the faceplate and rest user members can See.
Thanks in Advance
You can use Security Definition aspect to Allow/Deny rights for a specific user.
If an expression returns "0" or False, the button is disabled. If an expression returns "1" or True, the button is enabled (for stating the obvious).
But if an expression returns "2", the button becomes invisible, maybe this is less known...
I do not think this will help you design an expression to hide the button based on the current user - I believe that these expressions cannot read property attributes (happy to be corrected).
It might still be handy to know that returned value of "2" makes the button invisible.