Exactly!!! What he's complaining about is the lack of lazy-man's GUI tool to configure ip6tables.
I may be ethnic Chinese but I grew in Sierra Leone and English is what I use from day to day and I cannot read Chinese characters...or do not recognise enough to claim literacy anyway.
Are you absolutely sure that FWBuilder doesn't support IPv6? Because here there a release note http://www.fwbuilder.org/docs/firewall_builder_release_notes.html referring to ip6tables.
When did I or the OP say there was absolutely no ipv6 support?