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- Specify port: Enter the port number of the input device. Most standard RS-232 serial devices enumerate on port 0. If you are connecting a USB-serial device, it will enumerate on port 2. To configure the serial port, navigate to File > Presentation Properties > Interactive.
- Specify serial input: Enter the serial input string that will trigger the event. You can also use the <*> wildcard to match some or all of the serial input (i.e. entering "<*>" in this field will match any input, while entering "mycommand_<*>" will match any input message that begins with "mycommand_").
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