Billing (Billprice)

If you have xbilling set to Yes in your Configuration, this is how much should be billed on each interval for this product.

Installments (Billinstallments)

If you have xbilling set to Yes in your Configuration, this is the number of times a person should be billed for this product.

Installment Type (Billinstallmenttype)

If you have xbilling set to Yes in your Configuration, this is the installment period (Weekly, Monthly, Yearly, Daily).

Installment Interval (Billinterval)

If you have xbilling set to Yes in your Configuration, this is a number that specifies how often a customer will be billed. For example, if the value is "1" and the Installment Type is monthly, then a bill will be sent once per month.

Inventory Display Type (Spdisplaytype)

You can change the way subproducts are shown in the store by selecting an option from this list.

Has Sub-Products? (Hassubproduct)

If this is set to No, no subproducts will be displayed even if you have added them in.