Your Rackspace account is the top-level container which contains one or more AWS accounts. All user and permissions management takes place at the Rackspace account level, though you can limit specific users on your account to only have access to specific AWS accounts. The Rackspace account is also used for billing purposes. All charges from each of the AWS accounts are aggregated at the Rackspace account level.
The Account Owner or a user with the Account Administrator designation can set the session inactivity timeout for the Fanatical Support for AWS Control Panel. To change the timeout, visit account.rackspace.com, and then navigate to Account Settings > Rackspace Account Settings > Session Inactivity Timeout. The session inactivity timeout is the maximum time a user can be inactive before being automatically logged out. This timeout is applied to all users on the account.