Was exploring the newest release (3004.388.7_0_rog), and I found two sub menus under the IPV6 tab. Oddly the second tab only appears when you hover over the IPV6 tab, and it called 'Advanced_IPV61_Content'. Rather than advance content, it seems to be an identical page to the IPv6 main page. Maybe it's been there all along and I just never "hovered." Anyway, it seems redundant although maybe it's for dual WAN?