It would be very convenient when going through legacy scripts to be able to hit a shortcut combination to switch the order of an equality statement, for example in a JOIN clause

For example, with the cursor on "A.ID = User.AccountID":

SELECT U.Username
FROM Account AS A
INNER JOIN Users AS U ON A.ID = U.AccountID AND U.Active = 1
WHERE A.ID = @AccountID AND U.ID = @UserID

Becomes
SELECT U.Username
FROM Account AS A
INNER JOIN Users AS U ON U.AccountID = A.ID AND U.Active = 1 --note, only clause where cursor is is switched.
WHERE A.ID = @AccountID AND U.ID = @UserID

This would then compliment the casing/qualifying/wildcards/semicolons shortcuts you already have which massively speed up sorting out old queries.