Not sure if there is a better place to put feature requests in but... here comes one:
In RULES (yes I know it's "Beta"), the THEN should have the ability to BLOCK/UNBLOCK traffic from a Device (Maybe enabling/disabling DHCP to that MAC address?)
Reason: I have some Wifi IP Cameras (that point outside) in my home, but when I'm home doing wok, I'd like to disable traffic from those cameras on my network, since for Work, I use Skype and WebEx a lot - and would like to keep as much bandwidth available for Work - so I'd create a Rule to disable traffic from them when I'm Home, and enable them when I'm Away.