Thank you very much, that helps a lot. I'm dealing purely with midi and so ACW is not used, only the custom midi chord wizard. I did try the shift method but not using the track numbers.
The initial midi was simply two tracks of piano on track 2 and 3 but the midi wizard was using Track 4 for the chording and track 3 for the Bass (there was no track 4 and track 3 for Bass was wrong). When I changed these to the correct values they were change back again. But the result worked well,

Thanks again