The technical starting position
Motion recording can save storage space, but a poorly calibrated zone may miss the beginning or actually record every page. Continuous recording provides context, but requires capacity.
The choice is about what you want to know later: only reported movement or also the context before and after an event.

Motion recording can save storage space, but a poorly calibrated zone may miss the beginning or actually record every page. Continuous recording provides context, but requires capacity.
Evaluate activities in the image, the importance of context, and the available storage period. Look at each camera: a quiet back door asks something different than a busy entrance.
Choose recording format per channel and combine where appropriate continuous low-level recording with relevant event marking. Avoid a single universal setting without looking at the scene.
Run through an event and search for the minutes before and after it. Then check the actual storage impact after a representative period.
Not in crowded images or too wide detection zones.
It can provide context, but the right choice depends on the purpose and storage period.