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        Thu, 12 May 2016 00:16:23 -0700 (PDT)
Date: Thu, 12 May 2016 09:16:21 +0200
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Differential pair support
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> On Thu, 12 May 2016, Stephen Ecob (stephen DOT ecob AT sioi DOT com DOT au) [via geda-user AT delorie DOT com] wrote:
> 
> > My current PCB project needs differential pairs.  I'm thinking of
> > writing a script to replace selected traces of (say) thickness 19 mil
> > with a pair of 7 mil traces with spacing 5 mil.  Before I start work,
> > has anyone already implemented something like this ?
> 
> According to the pcb-rnd feature poll, this is one of the features I 
> likely to implement in the near future in pcb-rnd. I have plans to do it 
> the same way as you described: lie to all parts of the code that we are 
> drawing a single wide trace, then replace it with 2 (or more) traces at 
> the end (the moment the user clicks).

Then it is useful whenever there is a need to draw more than one trace/line in parallel at once.