The reason for this is because we have in our company 3 levels of users *1st level - Basic User, only can creates tickets for the second level *2nd level-Agent Basic - receive and manage tickets of the first level, once is processed the ticket is transfers to the 3rd level, also can create tickets for third level *3rd level - Normal Agent - receive and Manage tickets created by Second level and those the transferred from the first level with some modifications.i need history of all changes made in vars values, also fist values too. because i dont trust in 1st and 2nd user lvl. changes.with API ticket create i get it, but from open ticket page i dont have this option.*attached a image of my result with API