Joomla K2 has a nice Quick Icons Module for the administrator side. You can simply login to your Joomla admin and access all the K2 features right from the administrator front page only. You can add, edit, delete, view all items, change configuration, view categories, etc right from that menu. Most of the this quick icons dont come up or may be never configured. So, if you dont see it, there is always a way to get it back.