I really believe that an useful function would be having lots locations.
Explanation:
I use the "remarks" field to remind me where the items are, but I have always
felt that a little forced. The remarks should tell me other things, not where
the item is actually stored.
If we had a "location" field we would be able to split "remarks" and "Location"
so that one could do a research for all the items one has in location XX to verify
their inventory, and most important, when one uploads a new batch of that one
lot, they could merge also the location but not the remarks if they want to.