Sort Order of Pick List

The pick list currently lists products in numerical or alphabetical ascending order based on the warehouse location. It would be good to have the option to reverse this order to descending.  We have a pick order that we concatenate with the bin location before adding it to the pick list.  Shipstation lists this in numerical order 1,2,3,4,5 .... etc however required the highest number first in the list so it woudl be grate to be able to reverse the order of the list.