Filter Open Graph sitename

Since SEOPress 2.7.2

function sp_social_og_site_name($html) {
//you can add here all your conditions as if is_page(), is_category() etc..
	$html = '<meta property="og:site_name" content="SEOPress" />';
	return $html;
}
add_filter('seopress_social_og_site_name', 'sp_social_og_site_name');