Currently, for the SO_SalesOrderDetail object there is only the options to Copy From: Invoice History, Order History, & RMA Return Detail. No option to Copy from Sales Order, so its assumed that the values of the UDFs should always come forward when copying from Sales Order. This is not always what is wanted. Give the user the ability to decide to map the values like other areas.

The option to Copy From Sales Order is available on the SO_SalesOrder_bus (SO Sales Order Header fields), so why not the Detail fields?