b. When the prim is rezzed it will be transparent or invisible. It will display the completion message in local chat when it is rezzed:
Example: "Outlet Fire: The fire has been extinguished and the wires fixed. The electrical plug is now fully functional!"
c. Be sure to set each prim to a private group that is not accessible to tenants such as an employee or management group. Your technician will need to be in that group as well to stop the events.