Why is EXT_BILLACT no longer in OrderPaymentPreference

[Si Chen]

Hi.

I was looking at OrderPaymentPreference when billing account is used  
for payment, and I noticed in older versions, an  
OrderPaymentPreference of payment method type EXT_BILLACT is created,  
but not in the current version  Why is that?  It seems to me that  
OrderPaymentPreference.maxAmount would be the only way to split  
payments between different payment methods or payment method types  
(ie, two credit cards or a credit card and a billing account).

Si