I use NoteWorthy Composer for studying choral parts for a choir. But publishing in NWC-files is not allowed because there is a copyright. Publishing of midi-files is allowed because it is not printable.
That’s why I use then 'Boundary – Start a collapsible section' at the beginning of each staff.
Finally I add a blank staff with no lines .
If you will print this file, you get a blank page. I think that in this way the users of my website can use the NoteWorthy Viewer without infringe the copyrights.
(if my English is not correct, please forgive me, I am Dutch)