Jeffrey Friedl’s Blog » Blog Archive » Jeffrey’s Lightroom Configuration Manager
regex.info/blog/2007-03-13/395
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
For those who are a bit adventurous and wish to diddle a different set of hidden parameters, today I present the somewhat ambitiously-named “Jeffrey's Lightroom Configuration Manager.”