It would be useful if the absence calendars provided an option to show only employees without leave requests in the selected period. Currently, the "View Options" filter provides the flag "Show employees without requests". However, setting this flag to "Yes" and all others to "No" lists all employees in the calendar. It would be more useful if such a filter showed only employees that do not have any request in the given period.

This would allow managers and HR pros to check which employees are present in a given period. This would be particularly useful in large calendars, like the company absence calendar, since it would remove the need to scroll through the whole calendar to find workers who are not absent.