Your account administrators can enable any module and select the users that you want subscribed to that module. They can do this anytime. Once you subscribe to a module you’ll be billed for the selected user in your next bill. Similarly, if you decide not to use any module any more, your Account Administrator can just switch it off.
By default when you start your trial, only the Employee Portal module trial is activated. You can of course activate any other module anytime during your trial or even after you are subscribed to the portal. To activate a module, go to the Settings page and expand the 'Account' field. Click on 'Subscriptions' and start your 30-day trial of the module.