Hello, I have created two packages. I wanted an audio track with and without lead guitar, so I found a backing track I wanted to use in the second package. I have generated all the files I need for Custom Song Creator and used 2 different *.wem files for each package. In the song creator I generate one package, replace wem file with the new one and change the song names and generate another package, so that the arrangements and other files are same in both packages. Now each package works fine