I've set the useServerRewards config setting to true, have changed the name of the currency item to "RP", and still can't see how to to setup a sell order for an item in exchange for RP.  The main page info suggests this functionality is built in; is there some trick to adding RP as a searchable item on the "For" side of the sell order equation?  Or is there some other (undocumented?) process for selling items for RP?