Chiming in ... Flurmy's lower solution is the "best one", in that it creates exactly what you want, with the right number of beats.
In general, a complex voice sequence of overlapping rhythm can often be written with rest chords of the smallest common note length. Here is an example that shows what's possible and what not (see also attached files). In the attached NWC file and image, the upper staff shows the intended result, the lower one shows the rest chords with visible rests so that the "construction plan" is visible:
!NoteWorthyComposerClip(2.751,Single)
|Chord|Dur:8th|Pos:-4,-2|Opts:Stem=Up|Dur2:4th|Pos2:-6
|RestChord|Dur:8th|Opts:Stem=Down,ArticulationsOnStem,HideRest|Dur2:4th,Dotted|Pos2:-3,-1
|RestChord|Dur:8th|Opts:Stem=Up,ArticulationsOnStem,HideRest|Dur2:4th,Dotted|Pos2:-6
|Spacer|Width:200
|Rest|Dur:8th|Opts:Stem=Up|Visibility:Never
|RestChord|Dur:8th|Opts:Stem=Down,ArticulationsOnStem,HideRest|Dur2:4th|Pos2:-2,0
|Note|Dur:8th|Pos:-6|Opts:Stem=Down
|Bar
|Chord|Dur:8th|Pos:-3|Opts:Stem=Down,Beam=First|Dur2:4th|Pos2:-2,0^
|Note|Dur:8th|Pos:-4|Opts:Stem=Down,Beam=End
|Chord|Dur:16th|Pos:0|Opts:Stem=Up,Beam=First|Dur2:4th|Pos2:-3^
|Note|Dur:16th|Pos:-1|Opts:Stem=Up,Beam
|Note|Dur:16th|Pos:-2|Opts:Stem=Up,Beam
|Note|Dur:16th|Pos:0|Opts:Stem=Up,Beam=End
|Chord|Dur:8th|Pos:-3,-1|Opts:Stem=Down,Beam=First|Dur2:4th|Pos2:-1
|Chord|Dur:8th|Pos:b-4,-2|Opts:Stem=Down,Beam=End
!NoteWorthyComposerClip-End
The first measure works out nicely. If one uses only rest-chords with eighth rests, an additional spacer is necessary for the hidden eighth rest. A better option would be to use a quarter-note rest-chord for the dotted quarter C.
In the second measure, the middle voice should also go to the F, which would therefore need an additional (short) upward stem: This is not possible in NWC, which limits chords to two stems. For three or more voices on a single staff that show some independent voice leading, it is therefore better to use, right form the start, multiple staves with layering.
H.M.