help navigating the xfinity website

I have eight (8) Xfinity accounts / locations, but when I log onto the Xfinity website, I am only allowed to access my primary residence.  When I was with AT&T, I could see all my accounts / locations and monitor them with ease, just as I can with our regional utilities (water, trash, gas & electric).  Unless I'm missing something, it doesn't appear that Comcast-Xfinity has fully joined the 21st century, when it comes to the navigability of their website.