I've received this request from several WCA customers who send different comm types to their contacts and sometimes different content categories within the same message. For example, newsletter, promotions, product and customer care, as types of comms. Sometimes, contained within the same message will be different blocks for a promotion, content to be shared on social, competition, etc. The same content categories can also be recurring on weekly and monthly bases, for example a newsletter may always have a footer section for sales and promotions. In order to measure engagement and retarget contacts effectively, there is a need to tag elements within the marketing message and not simply tag the entire message template. There is also a need to be able to query and score against clickthrough behaviour on elements according to certain tag categories, and not simply use tags to filter reporting.