I have a Dahua TiOC Camera (DH-IPC-HDW3549HP-AS-PV-0280B) which has audio siren/alarm and warning light. I've noticed that for IVS and Motion detect I can control the warning light with schedules but not the audio siren. Anyone know if this is possible? I'd like to have motion detect enabled all the time but have the siren and the warning light scheduled for a certain period. I can't find the "Period Setting" for the Audio Linkage (in Red on the attached Image). The one in Blue is for the warning light.