I had this idea when you create a task you can tick a custom added field called "Remind me" and if it is ticked (value=True) you can enter a date and time when you want to be reminded. Now, upon creation of an appointment I have a workflow that creates a task automatically and copies all necessary fields from the appointment (ie. Owner, Due Date, Remind me etc.). Now what I want is this: If a task is created and the field "Remind me" is True, then create a pop-up at the set reminder time. How to create this pop-up?