RAGGED POINT BIG SUR NO FURTHER A MYSTERY

The 'previous' trick with using the Ruby script and inserting the data files in .../Procedure/Library/Displays/Contents/Means/Overrides/ won't operate any longer, even with SIP disabled given that the file system has become mounted read through-only. You can mount it examine-write but which is a really long-winded and potentially lethal Answer.This