Sending simultaneous triggers

OpenSesame version 4.1.9

Operating system Windows 10

Backend Expyriment

I hope this is a relatively straightforward coding question - I have to send triggers via a break-out box which is connected to the presentation PC's parallel port with a coax cable. The break-out box has 4 input ports, which I can use to send triggers with different codes. But I *think* the ports need to have Open Sesame triggers sent simultaneously to make different combinations, e.g., from the documentation:

Port 1 alone: Event number = 1

Port 1 and port 2 binary number: 3

Port 1 and port 3 binary number: 5

Port 1 and port 5 binary number: 9

I would like to test whether this is true anyway, but I'm not sure how to send triggers simultaneously from Open Sesame. My trigger set-up is this:

port = parllel.ParallelPort(address='0xD050')
port.setData(4)
port.readPin(2)
port.setPin(2,1)
def sendPP(trigger):
    port.setData(trigger)
    return;

sendPP(1) # works as expected, trigger = 1

To get a trigger labelled 3, I've tried sending:

sendPP(1,2) # error message, not the right syntax

sendPP(1)
sendPP(2) # not sure if this would be strictly simultaneous, or simultaneous every time, anyway no trigger is sent

This might not actually be an Open Sesame problem, but just trying to rule that out. Thanks for any tips!

Best,

Kate