Ai2 File Assistant - Copy and Rename Screens :

https://github.com/saturnknts/MIT-App-Inventor-file-assistant

Written in AutoIt language and the source is available as well.  

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Added to the Screens section of the FAQ

https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/mitappinventortest/2cd6Uz__xA0/cPQSiZpcDAAJ

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Thank you! 

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