The only ways to prevent a system break at a certain position:
- reduce the printable size of the notation (from File, Page Setup)
- remove extra space by placing reduction Spacers that reduce the note spacing
- force a system break at a prior bar
So, for example, if you have:
!NoteWorthyComposerClip(2.751,Single)
|Note|Dur:Half|Pos:0
|Note|Dur:Half|Pos:0
|Bar
|Note|Dur:Half|Pos:0
|Note|Dur:Half|Pos:0
|Bar
!NoteWorthyComposerClip-End
This can often be greatly reduced by using spacers:
!NoteWorthyComposerClip(2.751,Single)
|Spacer|Width:10
|Note|Dur:Half|Pos:0
|Spacer|Width:10
|Note|Dur:Half|Pos:0
|Spacer|Width:10
|Bar
|Spacer|Width:10
|Note|Dur:Half|Pos:0
|Spacer|Width:10
|Note|Dur:Half|Pos:0
|Spacer|Width:10
|Bar
|Spacer|Width:10
!NoteWorthyComposerClip-End