Recipient selection options in the email module

When sending mass marketing emails, I need to customize the list way more than is currently possible. All of the fields in the Third Parties cards should be possible to use as selectors. (Such as City, Zip code, State/Province, Country, Potential, etc.) Specifically I’m missing the state/province option at the moment. In addition, it should not be a yes/no option, but multiple values should be available to be selected: so that if I want to send an email to for example the New England area prospects in the US, which consists of 6 states, I could select those 6 states and wouldn’t need to send 6 separate emailings.