By using Better HR software,  employees can know easily how many leave days they remain and how many leave days they have been taken and employers can adjust through application how many days they will allowed for each employee.
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Here is the tutorial video.

To adjust leave days ,
( 1 )Go to Employees, and click at the name of employee where you would like to adjust leave.

( 2 )Go to Policy and you will see this page, then, place your arrow around the red region where shown in Figure, so, you will see  + , - button, you can adjust there.

( 3 ) When you are here,and u can adjust there as the last step.