Restricting Project Areas

Hi,

Does anyone know how I can restrict one user X who is scheduled to one project area, for example EGL, and the same user X is not scheduled to another project area, for example JAVA, and when he logs on the web UI on Jazz Server, he can see his project area EGL, but also JAVA project area. Is there any way to forbit that user for not viewing other project areas where he is not scheduled in any way?

Thanks,
milan_krivic