Modify the default number of posts displayed in a list

gistfile1.txt

add_filter( 'wpak_posts_list_posts_per_page', 'wpak_set_nb_posts', 10, 2 );
function wpak_set_nb_posts( $nb_items, $component ) {
	
	//Check component slug to apply only to some of the "post list" components:
	//(don't do this check to apply to all "post list" components)
	if ( $component->slug === 'my-component-slug' ) {
		$nb_items = 100; //Post number you want
	}
	
	return $nb_items;
}