[Cerio]

You probably know that you can use the ChordPro reference implementation to create PDFs. Transposing works fine there, but you have to create separate PDFs for every key you want to play the song and import that into MSP - you end up with many songs in MSP without the possibility to use MSPs transpose feature

Yes, I knew that, but I often need to transpose on the fly while gigging, and using the computer is not an option for me. 

Being able to transpose these kind of chordpro files directly in MS would be just great!