Have you tried enabling this in trunk/npc/merchants/refine.txt ?
//============================================================
//= Main Refiner Function
//============================================================
//= To allow auto safe refining/multiple refining set the
//= second argument to '1' in the function call.
//============================================================
Example:
prt_in,63,60,0 script Hollgrehenn 85,{
callfunc "refinemain","Hollgrehenn",1;
end;
}
Was that what you're looking for?