What do we know about the biys Aikozha and Baikozha?

Scientific expedition «Trails of Nomads» has arrived in the Torgay region. What do we know about the biys Aikozha and Baikozha buried in the Kostam architectural monument? What information confirms that Abdigapar Zhanbosynuly, whom the people proclaimed khan, formed a democratic system in the Torgay region? For what purpose were the two ancient watchtowers - Yekidin used in the time of troubles? How did the batyrs, including Zhauke, influence the migration of Kenesary Khan with his horde to the Torgay valley?