Your TSO or RACF® security administrator should define user profiles for all TSO/E users of extended MCS consoles. TSO/E logon can be controlled through TSO/E or RACF, and like operators, you can define TSO/E users by individual or group profiles. Your installation authorizes the TSO/E user to be able to issue the TSO/E CONSOLE command. This command initiates an extended MCS console session. For an example of how to define a TSO/E user to initiate an extended MCS console, see Controlling extended MCS consoles using RACF.