C# gpib as listener with multiple secondary addresses

Hey all. I've got a little problem I've been beating my head against a wall on. 

I am writing a GPIB Listener program to emulate some hardware following the example found at as a foundation: 

https://forums.ni.com/t5/Instrument-Control-GPIB-Serial/NI-GPIB-USB-controller-as-a-device-C/m-p/1239744?profile.language=en

The issue I have is that the hardware I need to emulate uses multiple different secondary addresses for each module in it. It's an old beast. 

Anyway, is there some method in C# to create multiple listeners with different secondary addresses using only a single GPIB hardware interface? 

Thanks.