It would be GREAT to have an option on the list view of an entity query widget to allow inline creation of entities (I think you guys have seen similar interfaces before).
It is an intuitive way to quickly create a things en masse (rather than having to navigate the creation dialog each time).
Things I'd imagine:
- required fields would turn red and block the creation of the entity
- once all required fields are entered the entity is created
- the same logic that pre-populates the creation dialog with default values based off of the current filter would auto fill out the same fields on the newly created entity