Once I have a file that demonstrates the problem I will take a look at it.
There was a calss of bugs dealing with mirrored instruments that was fixed recently, but nothing was done to adress this one problem, although it may have been fixed in the process, but I can't duplicate the problem on a file that I create.
There is almost no chance of getting a special mirror duplicate tool. The goal has been to consilidate tool fuctionality, and not have a special tool for operating on differnt objects. If there is a problem with mirroring, then the existing mirror duplicate tool needs to be fixed.
Discussions on this can get lost at the bottom of the list. The only way to know that a problem is being looked at is to submit the problem to tech support or bugsubmit.