In the event management dashboard, you can modify the columns that you see by default
You can edit the event management dashboard view, to modify the columns you view. You can only add the fields from em_alert_history table.
You would need to add a new record to the "List Elements" related list in the below form:
You need to make sure you are adding the exact column name from em_alert_history table under "Element" field. The List ID should be "em_alert_history". Please use an existing record as a reference