In versions 4.7X4I you can not edit sounds, the cursor don't appear. My emulator is Fuse.
yes, it's in the notes. There wasn't enough room for sounds when I added the new memory options. However, you can edit sounds in an earlier version, and then import them as binary, the address for each sound is provided. Most people don't use sounds as they can be buggy. Or you can use version 4H if you prefer.