no, if the file to be loaded has had 13 banks saved it will overwrite all 13 banks on load. If it had 3 banks saved as explained previously, it will only overwrite A to C and leave 1 to 10 unchanged on a normal load. If it has 13 banks and you want to leave 1 to 10 unchanged then use page 3 load to load banks A, B and C only.