Linked lots will extend together when bid on in the last 60 sec and when no bids are bid clock will count down to 0 and lots will close together at the same time YOU WILL NOT HAVE A CHANCE TO BID AGAIN ONCE THEY CLOSE, they close at same time. Look in lower left-hand corner for the chain link and letter. If it says Z any lot that has Z on it is linked, A is linked with A and so on.