IEditSessionAddPaymentItem Method | 
| Name | Description | |
|---|---|---|
| AddPaymentItem(Decimal, IPaymentItemAdditionalData, IPaymentType, IOrderStub) | Add new payment item to order.  | |
| AddPaymentItem(Guid, Decimal, IPaymentItemAdditionalData, IPaymentType, IOrderStub) | Add new payment item to order.  |