Activation Server > Tutorial Activation Server > Administration / Setup > Manage Users:
Modify existing user
Click on the username you want to edit in the Manage user list view and modify the user data.
The administration can also modify for this user:
Page url: http://www.helpserver.biz/onlinehelp/lpmme/was/admin/3.0/help2000/index.html?tools_modify_existing_user.htm