def METHOD_NAME(self):
    index = self.currentIndex()
    mime_data = self.model().mimeData([index])
    parent_index = self.model().index(-1, -1)
    row = index.row() + 2 if index.row() + 2 < len(self.model().layers) else -1
    self.model().dropMimeData(mime_data, Qt.MoveAction, row, index.column(), parent_index)