New Port Forwarding Menu vis Cox Website

Previously Port Forwarding could be done via your Default Gateway, now you must go through the Cox Website. In doing this Cox removed the ability to enter your own IP address for Port Forwarding, you must select a device now. 

I am trying to port forward to my broadcast IP 192.XXX.X.255, I cannot enter in my own IP, I must pick a device so this will not work.

Is there any workaround for this? And or when will this functionality be added back.

Thank you