To add custom code to the Meta bar in the posts single pages (the default meta bar contains the comments count and the like button and count) you can use the following Hooks:
Add custom code at the Start of the meta box:
function custom_pix_post_meta_box_start() {
?>
<!-- Your code here -->
<?php
}
add_action( 'pix_post_meta_box_start', 'custom_pix_post_meta_box_start', 10, 0 );
Add custom code at the End of the meta box:
function custom_pix_post_meta_box_end() {
?>
<!-- Your code here -->
<?php
}
add_action( 'pix_post_meta_box_end', 'custom_pix_post_meta_box_end', 10, 0 );