I saw that "Secondary Sort" is on the to-do list, but I'm not sure whether this is exactly what I want to suggest.
The feature I am looking for is to be able to specify multiple sort criteria, like in Excel for example:
I think this could greatly improve the quality of how the results are presented (i.e. bringing more relevant results to the top). For example, the column "Count Run" is great, but only for those files I searched before. Everything else is still a mess...