Mick,
I reread COS tutorial page 4...
I diffed all the cax files in every direction/dimension/permutation, and these are the 4 base cax files from which all others will be copied (see attached)... I edited the comment showing which OS's each file supports.
I edited out any non-significant differences (i.e. whitespace, description text reminders) so that all 4 files have uniform format... i.e. any differences are significant.
I am almost ready to merge in the lean cruise stuff...