I'm not sure I understand what is meant by 'assigning' the multis. The basic receive and transmit channels are "1" as per the manual. I never had a patch map with the ES/BIAB connection in the past and didn't suffer this problem. I have no idea how to get an .ini or .pat patchmap file for the ES. As regards the midi files from the internet, I did have a problem in the past, but that was solved by clearing the list editor in the midi files. The problem I'm having now is with home grown BIAB files.