"T"riangulate + "Loc"ator. TLOC helps you to triangulate points with ease.

Youtube - TLOC Guide

1. Copy tloc.py to:
   • Windows

     \Users\USERNAME\Documents\maya\scripts
     

   • Mac

     $HOME/maya/scripts

   • Linux

     $HOME/maya/scripts

2. In Maya
   1. Open Hotkey Editor (Windows > Settings/Preferences > Hotkey Editor)
   2. Create a new 'Runtime Command'

      

   3. Set Hotkey

      Alt + Shift + X

   4. Save and Close