Despite the clunky name, this is a general purpose filter to embed co-ordinates as a string in the CustomName (or other) field of a Tile Entity.
The simplest use case is to add display co-ordinates to a Command Block so when it logs to the admin log, you can see which command block is 'talking' instead of having them all named '[@]'
Test it in a backup world and let me know what you think!
Based on /u/piotrex43 request http://redd.it/2qphsz
MCEdit Filters >