In a section SCHEDULE you can define in the left-hand filter (tab SHOW) what sort of warnings, cautions or notices should apply and displayed in sections Table & Calendar.
Right now, when you hover the mouse over the crew code (in either section Table or Calendar), Leon shows all details regarding all warnings/cautions or notices marked in the filter.
Leon still shows this information if you hover the mouse over the crew code even if checkboxes in the left-hand filter are unmarked.