... we are here for. EGTP= External Geometrical Radius- Tangent Point. EGORG= External Geometrical Radius- Origin (radial centre). The external geometrical radius is often called the Substitution Radius. IGTP= Internal Geometrical Radius- Tangent Point. IGORG= Internal Geometrical Radius- Origin (radial centre). You may need to add some approach track before these options become available. Here is the peg on EGTP. To see the effect try clicking the tools> make split> make plain track turnout road> menu items: 2_011733_270000000.png There is a video explaining EGORG and Substitution Radius here: http://templot.com/martweb/videos/subs_rad.exe Sorry it's old and out-of-date. regards, Martin. posted: 1 Oct 2014 22:50 from: Martin Wynne Brian Nicholls wrote: However, when I look at the <peg positions> menu, I find the< peg on TORG> is 'greyed out'. Hi Brian, The TORG peg position is available only for straight turnouts having a curviform type of V-crossing ...