They do have a lot of configurations. There is a version that has a qd slider that slips over the nylon webbing on one end of the sling l to convert what would be a two point sling to single point. I ended up removing the slider on one that I have that came with it, not sure how to guide you on which version that is. Maybe someone else has more details, but keep hunting because it is out there.
Edit: if you go to their sling hardware section on the site, it's the burnsed socket you are looking for to add the single point capability.