The Appear rule will be triggered when an object appears already inside the zone (like coming out of a door, or from the background of the image, etc). When selecting this option we have the following configuration options on the right side:
•Name: Name of the filter.
•Can Trigger Events: Check this option if this rule can trigger events.
•Zone: Zone to which this filter is associated.
•Event Actions: Desired event actions when this rule is triggered. To learn more about alarm actions see chapter How to configure event actions.