public function addActionToCellGroup(&$cells, $action, $actionKey)
    {
        $cellsMap = [
            'primary'   => [
                'view',
                'edit',
                'hide',
                'delete',
                'stat',
            ],
            'secondary' => [
                'viewBig',
                'history',
                'perms',
                'new',
                'move',
                'moveUp',
                'moveDown',
                'moveLeft',
                'moveRight',
                'version',
            ],
        ];
        $classification = in_array($actionKey, $cellsMap['primary']) ? 'primary' : 'secondary';
        $cells[$classification][$actionKey] = $action;
        unset($cells[$actionKey]);
    }