You can write a "Value(Signaling)" property to the control monitored by the other event.
(e.g. create a hidden boolean labeled "event 2" that is always false and not connected to anything. Make the second case triggered by a value change of "event 2". Now, if you want to trigger the event from anywhere, write a "false" to the Value(signaling) property of "event 2". The value does not need to change, writing a signaling property will always fire it). Good luck!