When a sub-item contains a date, would it be possible to display that date directly in a column of the parent item? (Not using a mirror column that only shows the first or last date among all sub-items)
What are you trying to achieve
I would like to see in a column of my items a specific date that is included in one of my sub-items. But there’s no automation linking the two, so for now I have to manually copy the date.