Add "communication summary" column to eDiscovery (Premium) cases page

When viewing all cases, it would be great to see the communication summary displayed as an additional column. As eDiscovery administrator I just want to see the number of notices sent and the number acknowledged displayed for each case without having to click into each one. Just a simple "4/7" to show 4 acknowledged out of 7 sent would be great to see alongside the case number, case name, description columns, etc.