About override actions
Whenever a writable point is controlled from an action issued at either override level, it has an override status. By default, override status color is violet.
A manual (In8) override action to a point (not auto) prompts for an override duration, see the following image.

By default, a Permanent override is the
first choice in the drop-down list This override value remains effective
until the next time this action is auto’ed. Other timed durations
are available, including a Custom selection in which
a user specifies a duration in hours, minutes, and seconds.
If needed, you can limit the maximum duration of manual override using facets.
Clicking OK, issues the override action to the point. If this is the highest effective priority level, the writable point operates under this override control. If the override is timed, the priority scan returns to automatic control when the override period expires.