Receipt Itemization - Restrict the expense types for itemization in portal

I want to limit the expense types that are in the drop-down for itemized receipts. As an example, I have an hotel receipt which I want to split out the taxes, meals, breakfast and dinner for itemizing hotel. I know that there is a BADI TRIP_RECEIP_WIZARD and the method CHANGE_DROP_DOWN_LIST. In reviewing the documentation on this BADI it specifically states "You can use it for transactions of Travel Management including TRIP_EWT, but not for the services in SAP EP interface".

Any ideas on how I can limit the visible expense types for itemization in the enterprise portal?