def insertTopLevelGroup(self, groupName, position=None):
        """ Inserts a top level group tree item.
            Used to group all config nodes of (for instance) the current inspector,
            Returns the newly created CTI
        """
        groupCti = GroupCti(groupName)
        return self._invisibleRootItem.insertChild(groupCti, position=position)
Inserts a top level group tree item.
            Used to group all config nodes of (for instance) the current inspector,
            Returns the newly created CTI