CorelDRAW Graphics Suite X5 :: Randomize Order Of Objects In Layout?

I use CDX5 to run our laser engraver.  A customer brought us in some plastic sheet he'd like us to laser into small little "lenses" that go over LEDs.  These little lenses are roughly .5" square with one radiused corner.  The material isn't cheap, so of course the customer wants to minimize waste -  I can't spread them out.

I just ctrl-D duplicate them into a tightly packed array and send to the laser... Unfortunately, the material isn't very laser-friendly.  It sucks up a lot of heat and starts to bulge, which takes the laser out of focus.  I can get decent results by doing a few at a time, but that causes too much waste.  If I try to do to many in one area, the bulging leads to ruined parts.

Is there a convenient way in CD to randomize the order of objects?  If the laser would cut one over here, then another over there, etc, I think the heat buildup would no longer be a factor, and I wouldn't have to babysit the machine.  I thought about doing it manually in Object Manager but, ugh, there are like 384 pieces in the layout.