Advanced rdlc report design

Question

Hey

I made an application that generates reports about the work that my clients employees do. The application does everything that is requested, but my client additionally requested that the data shown in reports should be grouped by the employee who performed it (each employee and the work he's done is represented by a database entry). Let me clarify this request:

A report about a single employee contains a header with his name, last name, serial number and then the report data contains time he got to/off work and some other informations. Now that is done just fine, but how can I make the general report (for all employees) that would display all the data in the database but divided into sections (it should look like all the individual reports got pasted on the same report) so that when the general report is viewed, the viewer can still see who did what.  I used the VS 2010 to create my application, if that is of any relevance.
I have no idea how to do this, so please advise. If I failed to provide some informations that you need, please tell me.

Thanks