Ability to duplicate child items when creating a new collection item:
Use case: Itinerary
  1. Create a standard '[Day]', with breakfast, lunch and dinner as [Items].
  2. List the days in a list, with a button/icon on a [Day] to duplicate. Button action is to create a new [Day] with the same attributes as Current [Day].
  3. This new function would allow us to create copy [Items] of the Current [Day]'s [Items] and have those linked to the new [Day] we created in step 2.
Other use cases would be for duplicating any records that have child records.