Reverse pick sequence

Hi, we pick orders using Vocollect and Dematic’s pick director. Our pick sequence is laid out with the biggest, heaviest items first so that these may be placed first on a pallet. Issue is, not all of our orders add up to a pallet. This results in pickers having pushing heavy, full trolleys around the warehouse until the order is complete. I would like to reverse the pick sequence for non-pallet orders so they begin with the smaller items first, and still have the full pallets beginning with the bulkier items. Is this possible with Nav and Vocollect?

Many thanks for any feedback