anchor.diff:  interface>> and MIDI controller mapping implementations which can be
   http://deepsymmetry.org/afterglow/doc/afterglow.show.html#var-register-grid-controller[registered
   as grid controllers], like the <<mapping_sync#using-ableton-push,Ableton Push>>.
  +
  +== The Cue Grid
   
   The cue grid is a two dimensional arrangement of cues, where the
   bottom left corner is assigned coordinates `(0, 0)`. X coordinates
  
positive.code: = Cues
  James Elliott <james@deepsymmetry.org>
  :icons: font
  
  // Set up support for relative links on GitHub; add more conditions
  // if you need to support other environments and extensions.
  
negative.code: 
  |===
  
  [[creating-function-cues]]
  == Creating Function Cues
  
  Often you want a cue to activate a specific feature of a fixture
  (often described as a _function_ in the fixture manual, and in the
  