When the Accounts tab is included in a task that modifies a user, administrators can use that task can perform functions on the user's accounts. The available functions are determined by the tab configuration.
You can select which functions are available by using the Modify Admin Task on a user task, such as Modify User. You edit the Accounts tab to determine if functions such as Assign Account and Unassign Account are available in the task you are modifying.
See the online help for the Configure Accounts tab for more information.