Time navigation in PI Vision built for operators rather than for typing timestamps. Today, Yesterday, Last 8 h are one click each; step the whole display window backward or forward, or snap back to live. A real month-grid calendar sets an exact window with optional hh:mm boundaries. The Events popup lists recent AF event frames with times and durations - pick one and the display time becomes exactly that event, which is the fastest way to review a trip. Found the moment that matters? Save it as a named bookmark chip that persists with the display and brings every symbol back to that window in one click.