PeepSo navigation profile new item

// Add "hello" menu to PeepSo Profile menu
add_filter('peepso_navigation_profile', function($links){

    $links['custom'] = array(   // this key needs to be unique to your plugin
      'href' => 'https://youdomain.com/custom-page',           // you probably want to get the permalink programatically
      'label' => __('Custom Page','peepso-core'),
      'icon'  => 'icon-hello',      // CSS needs to work both as <i> and <span>
    );

    return ($links);
});