1. Click on the Leave Management icon 
from the navigation menu, then select the Balance Management option in the Balances section.
2. Click on Settings icon 
on the bottom of the left corner of the screen.
3. From Screen Mode drop-down, pick Consumption Overrides and hit the Apply button.
If you wish to change multiple leaves for multiple people at one time,
click on Bulk Edit. Enter the desired amount of Hours and Validity Period,
and click on every leave/employee you wish to modify.
Click on Apply at the top of the page to save your action.
4. Search or pick the employee/leave you wish to modify.
5. Click on the accountable hours (in gray).
6. Click on calendars 
to select a date range.
7. Use the arrows 
if you wish to modify the pre-selected hours.
8. Click on the green checkmark 
to save the changes.