I am still in the process of trying to create a model for this. I have one of the darlington pairs layed out in a schemtic and it seems to work. Now the only thing I have to do is to copy this one multiple times and interconnet the Com and Grnd and then add all the pins. Then I can create and test a component.
I may be a while doing this. So please have patience.
Sorry it has been a while on this. It ended up being more complex that I had at first thought. I gave it my best shot here. I am going to post a schematic with part on it so you can save it to your database.
Please let me know if it works for you or doesn't as the case may be.