If you've added unavailabilities to an employee's calendar and you want to make changes to the unavailable times, follow these instructions:
Click on "Calendar" and then click the "Week" or "Day" option in the upper right corner.
Use the "Employee" Filter on the right-hand side to filter the calendar by Employee.
View the date of the unavailability that you want to edit. The unavailable time will be shaded grey.
Click on the Unavailable time and scroll to the approximate midpoint of the unavailability where you will find a pop-up.
Click the "Edit" option in the pop-up to open the Edit Form.
Make your changes and submit the form.