overload

Hi people, Im a long time Nokia user who has just come across to Android (Motorola Atrix). Love the operating system but am missing one Nokia feature I used and need. Nokia has a profile manager that allows you to restrict which of your call groups or contacts can get through to you. Great while Im sleeping as Im a shift worker. Anyone know of an application that will do this. Ive tried a few but none even come close to the Nokia system unfortunately.....help please...