AllViewedPlugin::base_render_before PHP Method

    public function base_render_before($sender)
    {
        // Add "Mark All Viewed" to main menu
        if ($sender->Menu && Gdn::session()->isValid()) {
            if (c('Plugins.AllViewed.ShowInMenu', true)) {
                $sender->Menu->addLink('AllViewed', t('Mark All Viewed'), '/discussions/markallviewed', false, ['class' => 'MarkAllViewed Hijack']);
            }
        }
    }