span class='op'>=</span> <span class='fl'>0.7</span>,
  x2Offset <span class='op'>=</span> <span class='fl'>6</span>,
  pairedOnly <span class='op'>=</span> <span class='cn'>TRUE</span>,
  graphics <span class='op'>=</span> <span class='st'>"base"</span>,
  addModel <span class='op'>=</span> <span class='cn'>TRUE</span>,
  modelSize <span class='op'>=</span> <span class='fl'>3</span>,
  modelColours <span class='op'>=</span> <span class='st'>"black"</span>,
  modelLineSize <span class='op'>=</span> <span cl