If I'm understanding things correctly, to do this you need to use underhand methods - it's not a feature.
The presence of such manoeuvres helps cement my belief that the only rational bidding strategy is to decide how much you're really willing to pay (a more complex mental process than many give it credit for) and bid once only, as late as you dare.
The only proviso I can think of is that buy it now and make offer options are removed by the first bid, so it may be desirable to place a minimum bid early if someone hasn't done so already.