Well, I must confess I'm stumped. I seem to have successfully installed the Note Mapper plugin into Cakewalk, but I cannot find any info' on using Note mapper in Cakewalk. I had hoped that I might be able to use this plugin without becoming fully conversant with Cakewalk, which I am using just to transpose and delete notes in a Piano Roll view - most of the rest in beyond me. I am also possibly hampered by not being a musician - I'm using a mechanical organ, not playing one! I was hoping to just pick out selected instructions for using the Filter function, but cannot even find general help anywhere.
I'm grateful for the responses I have received so far, but unless I can find some sort of idiot's guide, I think this is all beyond me. I was involved in computing for about 30 years, but now my 82-year-old brain is struggling.