My apologies - I wasn't clear enough. All 4 cameras do record. I do have an overlap between the cameras' field of view. Camera 1 records with a decent amount of pre-trigger and the overlapping camera 2 picks up once motion is picked up. Camera 1's recording halts at this point while Camera 2 is...
Is there a setting to enable Blue Iris to record multiple cameras at the same time under motion triggering? I have 4 Dahua PoE cams set to trigger motino and have pre-trigger set on all 4. Or, if this is default, is there something obvious I unintentionally did/undid? Much help would be appreciated.
This may be a little late but, I would avoid hammering into brick. The mortar is typically stronger than the brick itself. Tapcon bolts would be a better choice - they can be found in home centers and will usually include a drill bit in the packaging. Hope this helps.