For removing items in the keep. Clicking an item slot will bring up the filtered inventory for items in that slot. Is it possible for Ctrl + click to avoid triggering the filter, and simply move the item to 'All Items' or whatever inventory view is displayed? The filtering (though it should be faster due to Farb's recent work) is the slow, annoying part.
This is a great - and simple - idea. I'm setting a reminder right now to look into it early next week.