Allow selecting columns when drag and dropping a multivalued complex from the schema tree

Currently, when drag and dropping a multivalued complex from the schema tree, a dialog is shown to allow the user to choose between scaffolding the field in view or edit mode (all subfields are scaffolded). When doing the same with a singlevalued complex field, the user can choose which subfields are scaffolded (and their respective modes).
The goal is to allow the user to select which subfields of the multivalued complex field, so that these can be scaffolded as columns in the data table.