Would be nice if we can use the same Barcode Key Across Multiple Accounts.
For people with more than one account, it's pretty annoying trying to find out which account goes to which code when there is Warmane (1), Warmane (2), Warmane (3), etc.
For Multiboxing, only have to type the code in one time for all Accounts instead of having to do a unique code for every Account.
Never thought of the possibility of distinguishing account names to the authenticator so their like for example grttt grtttt grtttr grtitt grttit, etc
There are some Apps I use which allow you to manually choose a already used barcode in case your making a 2nd email and such
There are also several single players with Multiple Accounts. My suggestion is under Select authentication method a 4th option of Use Existing Authenticator were you just type in the existing barcode then submit.