A follow on to this discussion:
Maybe @craftyjon can shed light, does the Copper finish and other setup data end up in a Fab output anywhere? Or is this only for reference in side the Kicad project. I don’t see it anywhere in the gerber X2 data comments.
Is it possible to reference these fields via variable in Pcbnew? For instance, I generally have a fabrication notes block on the User.Comments layer that is printed to PDF as a README in the fab package. This would allow that block to be driven from the Board Settings, similar (really exactly) like the Title block is from Page Settings.