$this->someConfig['settingname'] = [
                                    'model' => 'foobarbaz',
                                    'columns' => ['bla','blo','bleh'],
                                    'sortorder'=> 'asc',
                                    'defaultsort' => 'bla',
                                    ];

/**
 * My code sample
 * <pre>
 &nbsp; $this->someConfig['settingname'] = [
 &nbsp;                                   'model' => 'foobarbaz',
 &nbsp;                                   'columns' => ['bla','blo','bleh'],
 &nbsp;                                   'sortorder'=> 'asc',
 &nbsp;                                   'defaultsort' => 'bla',
 &nbsp;                                   ];
 * </pre>
 * bla bla bla
 */