RailwayRouteOptimization/scripts/Draw/Line/LineParallel/doc/LineParallel_proc_en.html

<ol xml:space="preserve">
<li>Choose the desired 
  
<a href="../../doc/Line_en.html#type">line type</a> in the options
toolbar.</li>
  
<li>Enter the distance of the concentric or parallel entity from the original
entity in the options tool bar shown at the top.</li>
  
<li>Enter the number of parallel or concentric entities to create in the
options tool bar.</li>
  
<li>Click the base entity. The parallel or concentric entities are created on
that side on which the mouse cursor is located while selecting the entity.</li>
</ol>