Hi Horahack,

adding additional content is easy once you get your existing WAV file tempo mapped to the project. Here is a good video on how to do that:

https://www.youtube.com/watch?v=bPRU61DkvSg&feature=youtu.be


here is a link to some discussion on the topic:

http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=82714

sounds like you're in for some fun! Enjoy!