How to circumvent crossing of the lines

How to circumvent crossing of the lines

[Cecil Westerhof]

I have the folowing document:
\usemodule[chart]

\starttext

\setupFLOWcharts
[
  dx=2\bodyfontsize,
  dy=2\bodyfontsize,
  height=3.1\lineheight,
  maxwidth=\textwidth,
  nx=5,
  ny=4,
]

\startFLOWchart[example]
  \startFLOWcell
    \connection [bt]{isErEenProbleem}
    \connection [rl]{urenInvoeren}
    \location   {2,1}
    \name       {tijdOver}
    \shape      {45}
    \text       {Is er tijd voor een volgend ticket?}
  \stopFLOWcell

  \startFLOWcell
    \connection [rl]{klaar}
    \location   {3,1}
    \name       {urenInvoeren}
    \shape      {action}
    \text       {Leg gebruikte uren vast}
  \stopFLOWcell

  \startFLOWcell
    \connection [bt]{ticketKlaar}
    \connection [lr]{contactTon}
    \location   {2,2}
    \name       {isErEenProbleem}
    \shape      {45}
    \text       {Treed er een probleem op?}
  \stopFLOWcell

  \startFLOWcell
    \connection [tt]{tijdOver}
    \location   {1,2}
    \name       {contactTon}
    \shape      {action}
    \text       {Neem contact op met Ton}
  \stopFLOWcell

  \startFLOWcell
    \connection [bt]{meldOpgelost}
    \connection [lt]{tijdOver}
    \location   {2,3}
    \name       {ticketKlaar}
    \shape      {45}
    \text       {Is ticket opgelost?}
  \stopFLOWcell

  \startFLOWcell
    \connection [lt]{tijdOver}
    \location   {2,4}
    \name       {meldOpgelost}
    \shape      {action}
    \text       {Meld ticket opgelost}
  \stopFLOWcell

\stopFLOWchart

\FLOWchart[example]

\stoptext

But the lines from ticketKlaar and meldOpgelost to tijdOver cross the
line from isErEenProbleem to contactTon. Is there a way to make the
lines pass contactTon to the left, so the lines do not cross?

-- 
Cecil Westerhof
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