2.    Click  Delete  to display a confirmation dialog. 3.    Click  Yes  to remove the selected toolkit application from the Available Applications  list. Editing Attribute Mappings After creating, editing, or cloning a toolkit application’s configuration, you can edit the list of currently mapped attributes for that application, but you cannot create new Application Extension Facility (AEF) attributes. Application-specific attributes must be mapped to existing Tivoli built-in attributes or existing AEF attributes. All attributes available for mapping must be defined prior to invoking the Application Management Toolkit. You should  not  map your toolkit application to any of the reserved attributes listed in the following table. Reserved Attribute Platform login_name UNIX nt_logon Windows NT nw_login_name NetWare wtk_samaccountname Windows 2000 sso_login Generic or common os2_userid OS/2® Managing Toolkit Applications 29 Tivoli®  SecureWay Application Management Toolkit Guide