The deduction screen will display the deductions applicable to the employee. Once a pay grade is selected for the employee, the deductions will default to what was set up in the pay grade. They can be modified from this screen if they are not correct. Again you also have the option to tick the required boxes for this deduction if you wish to have it show on the payslip or is subject to tax etc.
Leave
The leave screen will display the leave applicable to the employee. Once a pay grade is selected for the employee, the leave will default to what was set up in the pay grade. They can be modified from this screen if they are not correct. You will also notice that there is a box you can tick if this employee is subject to Leave Loading.