You want information from multiple tables about different employees. You create a template that gets information about an employee. The template contains an entity that uses multiple tables to gather information about an employee with ID number 10. The template also contains a group that contains unrelated configuration tables.
After you create the template, you can change it to get information about a different employee. For example, you can change the employee to ID number 25 and get the same information about employee ID 25.