Help needed 5268AC Uverse / Pace and parental control services

Hi All,  I just signed up for Uverse and got a 5268AC / Pace 5268AC included.  I have three internet savvy children, each with multiple devices and want to use a service or piece of hardware to be able to set up access times, controls and on/off switches for their individual devices (iPhones, iPads, Laptops etc.) one at a time.  WebCurfew seems like a great service for this. 

HOWEVER, from another forum question, it appears that the 5268AC cannot be remotely managed.  These parental control services need remote management access, so as-is, I am dead in the water.

1. Is remote access really not an option, or am I just missing it in the menus?

2. Is there some other way around this, such as patch cording a second wifi device that IS remotely manageable into the 5268AC and only giving the kids access to the wifi from THAT device?

3. If 2., then does anyone have a tried and true way to do this that a) doesn't slow down the internet and b) can have an extender downstream from it that can also be parentally controlled?  I already have a Netgear dual 2.4ghz/5ghz extender wirelessly downstream (in the kids part of the house) from the 5268AC and the kids move around, so they need access to both the main wifi point and the extender.

4. Are there alternative devices / services that provide might be simpler than what I'm thinking here?  I need the ability to: white list and black list per device, turn off access per device, set access time rules per device and get reports of sites visited.

Before someone says to simply hand back teh router to Uverse and get a new one, the current device runs two Set Top Boxes for TVs, my VOIP phone line, hard wired internet, WiFi (kids don't have this password), Guest Wifi (kids have access), Extender downstream of Guest WiFi.  This is so I can turn off Guest Wifi and shut all kid access off.  But it's clumsy having to do that in the settings.  Thus, I'm looking for a better solution.

Thanks for the help

Patrick