Hello MasterX,

I guess the first idea is better. Just Moving codes up. I am also thinking about recovering codes, that already had been deleted. If you delete a still  valid code, it is kind of cumbersome to log in your MtGox account to get this deleted code back. I am thinking of a list and only part of this list is visible.

code_-2
code_-1
code_0
code_1
code_2
...
code_10

code_0 to code_10 are visible and the rest is not. This means deleting for example code_1 moves this code to code_0. The user is able to move codes up and codes down. So moving down the list you can get code_0 back. Just in case you deleted it unintentionally.

The idea with exchanging codes is inferior.

code_1
code_2
code_3
code_4

Now the user wants to have code_3 on top of the list. Just exchange these two codes.

code_3
code_2
code_1
code_4

I guess this would be much easier to implement.

But I want this feature that a user can recover a MtGox coupon code deleted unintentionally. I still have to think some more about this new feature.

Regards

Ouzo69