I thought if I looked hard enough, I could figure this out for myself, but I simply can't locate the tools to do it. Rich explained to me how he modified something I did using hidden staves and symbols. I came up with the exact same issue on another piece, and I thought I could use his information to fix it - but I can't unless I know how to "hide" them (the staves, at least).
OK, I didn't look hard enough - started looking more closely at the stuff Rich did, and I've figured out at least some of it.