You never know,
@Biggles! If the OP is still receiving email notifications about replies to his thread, he might pop in and respond.
@nznegos, see my rather frightening(?) reply about this issue in your thread. I wasn't trying to make it sound impossible, just pointing out that identifying which notes should be in the right-hand part and which notes should be in the left-hand part can be a complex issue. The actual process of copying one channel to another, then deleting the unwanted notes from each channel so it contains just the right-hand part or left-hand part, is actually fairly easy if you're using a DAW or music notation software. I think most DAWs will let you select groups of notes in the piano roll view by drawing a rectangle around them with your mouse, then delete them with a simple press of the DELETE key.