Xavier,
1.Are those ZED restricted to the pilot or is the family able to enjoy it? It is the pilot and his 'eligible dependants'. They are spouse, children (unmarried and < 18 or unmarried, < 21 and in full-time education) and others as authorised by AJX. It normally does not include parents and 'nominated' people but, obviously, they MAY be authorised by AJX if there is a good reason.
2. On other Star alliances flights as well? Yes, Star Alliance and other IATA airlines with whom AJX has an Interline agreement.