Hi, I would like to have a special kind of auction in which each one can make a bid the nearest possible to a maximum price (defined for each prduct) but which can cancel the bid of someone else or be canceled if someone make the same bid. At the end of the auction (a time should be defined for the auction), if the minimum quantity of bids was reach, the nearest bid which was not canceled takes the product. Making a bid has a cost even if it was canceled. Is it possible to add this mode in auctiontastic ? Thanks a lot.