There's hundreds of ways it can be used. The basic idea is you pre type the email message with who it's to, subject and body of email then this message gets dragged onto a button or into a macro.

So if placed into a macro on the processor it can be triggered by a button press or an event. Events can range from the alarm panel going off, a thermostat reaching a certain temperature, a light being turned on or any other driver sense or time based event you can think of