HR Service configuration is designed to use the OOB components in the lab to accomplish the correct information to show on the case form. Many of the configuration settings in the lab have been created in lieu of having to create workflow and other components needed to create a specific layout for the HR agent. You can still configure the HR Service form using traditional methods, but keep in mind new functionality that will be available in future releases will be built using today's OOB constructs. It is designed more for a business user to make these configurations (HR Admin) for ease of use and faster time to case resolution without customization.