Hi,
Since Notation Player is designed to be a listening application (similar to Adobe Acrobat's Reader, which is a viewing application), we do not have plans to incorporate per-staff (track) controls. Please see either Notation Musician (
www.notation.com/NotationMusician.php) or Notation Composer (
www.notation.com/NotationComposer.php) for some programs that have more editing capabilities.
ttfn,
Sherry