Currently it seems that only individuals can be assigned as a required reviewer or optional reviewer of a submittal. In reality, a review may be required from any one member of a group, but not each member of that group. For example, when a review by the structural engineer is required, that may be completed by one of a few different people within that company's project team. If ACC allowed a group to be created which contains each potential reviewer from a single consultant company, and then that group could be assigned as a required reviewer, this would streamline the review process.
Currently, the work-around is multiple people sharing the log-in information for one individual's account, but that creates a potentially inaccurate record of who reviewed a submittal. The other work-around is to have each individual log in and mark the submittal as "reviewed", even though only one person actually reviewed it, which also created an inaccurate record, and also can delay the review.