Better signature limiting options

[msimplay]

hey
i was wondering if someone could make a hack with more comprehensive signature options via usergroups

ie check the gif below its a hack from phpbb however it has the best signature size and limiting options i've ever seen on any forum

and an improvement to this could be the ability to set it via usergroups

i know vbulletin 3 has some signature limiting options and there is a hack to limit size and width of signature

however this would be more comprehensive by far