\usemodule[chart]

\startFLOWchart[ABC]
    \startFLOWcell
        \name{A}
        \location{1,1}
        \destination{whatever:A}
        \text{A}
        \connection[bt]{B}
    \stopFLOWcell
    \startFLOWcell
        \name{B}
        \location{1,2}
        \destination{whatever:B}
        \text{B}
        \connection[bt]{C}
    \stopFLOWcell
    \startFLOWcell
        \name{C}
        \location{1,3}
        \destination{whatever:C}
        \text{C}
        \connection[bt]{A}
    \stopFLOWcell
\stopFLOWchart

\setupinteraction[state=start]

\starttext

    \FLOWchart[ABC]

    \startchapter[title=We're at A,reference=whatever:A] \input ward  \stopchapter
    \startchapter[title=We're at B,reference=whatever:B] \input tufte \stopchapter
    \startchapter[title=We're at C,reference=whatever:C] \input zapf  \stopchapter

\stoptext
