Thanks for your response.
Two measures in 6/8 time; all middle C's; second measure has rests on beats 2 and 5; all stems are DOWN.
!NoteWorthyComposerClip(2.0,Single)
|Clef|Type:Treble
|Text|Text:"1st French Horn in F"|Font:User2|Pos:15
|Key|Signature:C
|TimeSig|Signature:6/8
|Dynamic|Style:p|Pos:-8|Justify:Right
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=First
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=End
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=First
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=End
|Bar
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=First
|Rest|Dur:8th|Opts:Stem=Down
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=End
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=First
|Rest|Dur:8th|Opts:Stem=Down
|Note|Dur:8th|Pos:1|Opts:Stem=Down,Beam=End
!NoteWorthyComposerClip-End
After Tools/Transpose Staff/-3, all notes are A's.
After Tools/Audit Note Stems, stems in first measure are UP, while stems in second measure are DOWN.
!NoteWorthyComposerClip(2.0,Single)
|Clef|Type:Treble
|Text|Text:"1st French Horn in F"|Font:User2|Pos:15
|Key|Signature:F#,C#,G#
|TimeSig|Signature:6/8
|Dynamic|Style:p|Pos:-8|Justify:Right
|Note|Dur:8th|Pos:-1|Opts:Stem=Up,Beam=First
|Note|Dur:8th|Pos:-1|Opts:Stem=Up,Beam
|Note|Dur:8th|Pos:-1|Opts:Stem=Up,Beam=End
|Note|Dur:8th|Pos:-1|Opts:Stem=Up,Beam=First
|Note|Dur:8th|Pos:-1|Opts:Stem=Up,Beam
|Note|Dur:8th|Pos:-1|Opts:Stem=Up,Beam=End
|Bar
|Note|Dur:8th|Pos:-1|Opts:Stem=Down,Beam=First
|Rest|Dur:8th|Opts:Stem=Down
|Note|Dur:8th|Pos:-1|Opts:Stem=Down,Beam=End
|Note|Dur:8th|Pos:-1|Opts:Stem=Down,Beam=First
|Rest|Dur:8th|Opts:Stem=Down
|Note|Dur:8th|Pos:-1|Opts:Stem=Down,Beam=End
!NoteWorthyComposerClip-End