[TOptional](API\Runtime\Core\IO\TOptional)< EItemDropZone > OnCanAcceptDrop ( const [FDragDropEvent](API\Runtime\SlateCore\Input\FDragDropEvent) & DragDropEvent, EItemDropZone ItemDropZone, [TWeakViewModelPtr](API\Editor\SequencerCore\TWeakViewModelPtr)< [IOutlinerExtension](API\Editor\SequencerCore\MVVM\Extensions\IOutlinerExtension) > InDataModel )