To be sure to well understand, are saying that your second A section begins with following chords :/Eb-7 Ab7/Eb-7 Ab7/F-7 Bb7/F-7 Bb7/ ? So in this case, you got a transposed A section. Go to the menu Edit/Transpose/Transpose From...To... and then fill with appropriate data.
Unless you are talking about the key signature ? Pls confirm.


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