\setupinteraction[state=start]
\setupinteractionscreen[option=bookmark]

\setupbodyfont[mscore,12pt]

\defineconversion [greekone] [α,β,γ,δ,ε,ζ,η,θ,ι,κ,λ,μ,ν,ξ,ο,π,ρ,σ,τ,υ,φ,χ,ψ,ω]
\defineconversion [greektwo] [αα,ββ,γγ,δδ,εε,ζζ,ηη,θθ,ιι,κκ,λλ,μμ,νν,ξξ,οο,ππ,ρρ,σσ,ττ,υυ,φφ,χχ,ψψ,ωω]

\setuphead
  [chapter]
  [sectionsegments=2:2,conversion=greek,sectionstarter={(},sectionstopper={)}]
\setuphead
  [section]
  [sectionsegments=3:3,conversion=arabic,sectionstarter={(},sectionstopper={)}]
\setuphead
  [subsection]
  [sectionsegments=4:4,conversion=greekone,sectionstarter={(},sectionstopper={)}]
\setuphead
  [subsubsection]
  [sectionsegments=5:5,conversion=greektwo,sectionstarter={(},sectionstopper={)}]

\placebookmarks
  [chapter,section,subsection,subsubsection,subject]
  [all]
  [force=yes]
\setupbookmarks
  [numberstarter=<,numberstopper=>]

\starttext
    \setuplist
      [chapter]
      [numberconversion=numbers]
    \placelist
      [chapter,section,subsection,subsubsection,subject]
      [criterium=all]

    \startbuffer
        \chapter{One}
        \section{Alpha}
        \section{Beta}
        \subsection{First}
        \subsection{Second}
        \subsubsection{Foo}
        \subsubsection{Bar}
        \subsubsubsection{ABC}
        \subsubsubsection{XYZ}
        \subject{Gamma}
    \stopbuffer

    \getbuffer

    \startappendices
        \getbuffer
    \stopappendices
\stoptext
