On the T1 you have to create the collection and then add the items one at a time to the collection to force the order. A tedious process. You can't reorder them after they have been added to the list. Since some of my collections have a few dozen books in them, I added books to the collection in small batches of 4-5 books to get it "close enough" to the order that I wanted.
I recommend posting in the calibre subforum unless someone jumps in here to answer.
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