Hi,
1. Go to spro->IMG->Personnel Management->Personnel Administration->Payroll Data->Recurring Payments and Deductions->Wage Types-->Create wage type catalog
2. spro->IMG->Personnel Management->Personnel Administration->Payroll Data->Recurring Payments and Deductions->Wage Types-->Check wage type group 'Recurring payments and deductions'->Add new entries
3. Go to Transaction PE51.
Give the Form Name( eg.ZPAX)
Select Radio Button Window and Select Change.
Double Click on the window where you want the wagetype to be displayed.
Double click on selected group and add your wage type entry.