Are you asking about default action which will publish application to Backup stream when you click Duplicate app?
There is no way of doing it automaticly. You will need to duplicate app to work stream and then publish app manually to Backup stream!
regards
Lech
cheers Lech, When applicable please mark the correct/appropriate replies as "solution" (you can mark up to 3 "solutions". Please LIKE threads if the provided solution is helpful to the problem.