def _fetchAllChildren(self):
        """ Adds a child item for each column
        """
        childItems = []
        for nr, elem in enumerate(self._sequence):
            childItem = _createFromObject(elem, "elem-{}".format(nr), self.fileName)
            childItem._iconColor = self.iconColor
            childItems.append(childItem)
        return childItems
Adds a child item for each column