The question came to mind with the intention of a) making use of any autopilot capability to reduce workload during initial approach and, if an autopilot is available with the aircraft remaining in alternate law, whether there is a possibility of LVP capability (Cat 2). It appears that SEC 1+2+3 failure is a case where the autopilot is available in alternate law but until I've had a look in the sim, I've no idea whether that is possible. FCOM suggests it might be...