I would love to be able to sort by Item ID. It would make removing duplicates a lot easier.

Item ID and item name sorting would be A++.

Ideally, a temporary ordering that lets you sort by ID and remove the doubles without automatically saving that ordering, if that makes sense. But if you want to sort by name/ID and save that order, you absolutely could by hitting the "Order Treasure Chest!" button. Might be good to change that button to say "Save Treasure Chest Order!" instead, or something, for clarity's sake if these options get added.

I remember people being not too thrilled with these option possibly messing with how their TCs are sorted when TC sorting ideas came up before, so I think this would possibly be a good middle ground.