Here is a one staff staff solution:
!NoteWorthyComposerClip(2.5,Single)
|Chord|Dur:8th,Slur|Pos:-3|Opts:Stem=Up,Beam=First|Dur2:4th,Dotted|Pos2:-6
|Note|Dur:8th|Pos:-4|Opts:Stem=Up,Beam=End
|RestChord|Dur:8th|Opts:Stem=Down,HideRest|Dur2:4th|Pos2:-5
|Note|Dur:8th|Pos:-7|Opts:Stem=Down
|TempoVariance|Style:Fermata|Pause:0|Pos:6|Justify:Center|Placement:AtNextNote
|Chord|Dur:4th|Pos:-9,-6
!NoteWorthyComposerClip-End
and a layered solution:
!NoteWorthyComposer(2.5)
|AddStaff|Name:"Staff"
|StaffProperties|EndingBar:Open (hidden)|WithNextStaff:Layer
|Note|Dur:8th,Slur|Pos:-3|Opts:Stem=Up,Slur=Upward,Beam=First
|Note|Dur:8th|Pos:-4|Opts:Stem=Up,Beam=End
|Note|Dur:4th|Pos:-5|Opts:Stem=Up
|TempoVariance|Style:Fermata|Pause:0|Pos:6|Justify:Center|Placement:AtNextNote
|Note|Dur:4th|Pos:-6|Opts:Stem=Up
|Bar|Style:SectionClose
|AddStaff|Name:"Staff-1"
|StaffProperties|EndingBar:Open (hidden)|BoundaryTop:10|BoundaryBottom:10
|StaffProperties|Channel:2
|RestChord|Dur:4th,Dotted|Opts:Stem=Up,HideRest|Dur2:4th,Dotted|Pos2:-6
|RestChord|Dur:8th|Opts:Stem=Up,HideRest|Dur2:8th|Pos2:-7
|Note|Dur:4th|Pos:-9
|Bar|Style:SectionClose
!NoteWorthyComposer-End
Neither is a workaround.