You hide or display events in a trend log list to make the reading easier. Events that have a value or comment cannot be hidden and are always displayed. For example, as a Record was added, or as a Record was commented.
In WorkStation, in the System Tree pane, select the trend log list you want to display.
On the Trend Log List toolbar, click the Events button
Events are now displayed in the trend log list. Repeat the procedure to hide the events.