In that case, I would advise to do the following
1. Login as HR Manager/Admin
2. Go to Leave Types
[attachment=56]LeaveTypes1.png[/attachment]
3. Click on Edit and under Allocated, select Monthly
[attachment=57]NewNotifications66.png[/attachment]
So, now the leaves shall be allocated only on monthly basis. But for people who already have got the leaves, you might have to manually edit by going to HR Manager --> Leave Balance of all users
Let us know if you face any issues doing this.