Home page Framework for ESS

Hi

We are on ECC5.0, ESS 60.2, EP 6.0.

The client decided to do a pilot group for "Working Time" in ESS. So, of all the employees using ESS, only some of them will be using "working time".

Now the problem is,In the "overview" page in ESS, how can I make the Area "Working Time" be visible only to pilot group and hide it from the non-pilot.

Any ideas highly appreciated with points.