is it possible to feature pages instead of posta

Hi,

I want to feature 14 pages rather than 6 posts on my front page. I have tried the following code, which has worked well on other themes, but it is not working on Twenty Fourteen:

add_filter( 'pre_get_posts', 'my_get_posts' );
 function my_get_posts( $query ) {
 if ( is_home() && false == $query->query_vars['suppress_filters'] )
 $query->set( 'post_type', array( 'post', 'page') );
 return $query;
 }

// Add support for featured content.
function twentyfourteen_child_setup () {
  // This will remove support for featured content in the parent theme  
  remove_theme_support( 'featured-content' );
  
  //This adds support for featured content in child theme 
  //with a different max_posts value of 14 instead of default 6  
  add_theme_support( 'featured-content', array(
    'featured_content_filter' => 'twentyfourteen_get_featured_posts',
	'max_posts' => 14,
  ) );
}

Any suggestions, please?