Adds a new region for this zone at the given row and column.
        
        :param      name   | <str>
                    text   | <str>
                    row    | <int>
                    column | <int>

def addRegion(self, name, text, row, column):
        """
        Adds a new region for this zone at the given row and column.
        
        :param      name   | <str>
                    text   | <str>
                    row    | <int>
                    column | <int>
        """
        region = XDropZoneRegion(self)
        region.setObjectName(name)
        region.setText(text)
        region.hide()
        self.layout().addWidget(region, row, column)
        return region