If you'd like to set up a charge for any service(s) you offer, go to the Service tab.
To add a new service click on the green plus sign.
Next, fill in a fee description, choose whether it will be a flat fee or an hourly rate and fill in the amount you will charge. If you choose an hourly rate, the price you enter will be what you charge per hour. When finished filling out this form, click the "Save" button.
To charge for this service, either click on the "Add to transaction" link or type in the SKU on the Checkout Tab.