You have the freedom what to show when multiple events occurs on the same day. By default we only show the last event from the sender per day. But on the "Aggregate Form" tab in the template editor you can change this by unchecking the 'Use Single Form definition' That will enable your...

If you do not have different kind of habitats, you could just remove the variable from just the aggregated format. But you have to leave the definition defined on the atomic version to 'fool' the system. This is definitly a 'hack'; but I hope you can use this for our initial version release...