You can change the Home Portal Account settings for users in the Restricted Workbench environment.
You can change the Home Portal Account server address or user name and password for users in the Restricted Workbench environment by altering either the preferences or the plugin_customization.ini, as follows:
When a portal resource is accessed, the user is prompted for a user name and password. The user is then given the option to store these credentials in the account.
Parent topic: Installing with the Restricted Workbench Service: XPD622