Thanks again, and forgive me for being relentless :), but could I not use EOF to do the editing, save it, take the arrangement's XML file, use the toolkit's XML to SNG converter and then repack? I remember that the toolkit even has an option to update SNGs when packing (but that always failed for me). Mainly, I am trying to understand where (and why) this approach would fail, since it would spare me the work of having to reenter information etc.