[Mxfarm]

I quite sure that they do create drawings for each coach as does Foretravel and Bluebird (does Prevost/converters?) and surely they do not have a big document burning at the end of each week...
I agree that with the right tools one can figure out what things are where but we should not have to.

You might be surprised - I'd bet the same person works on the same system in every single coach. The old adage "even rocket science isn't rocket science after you've done it awhile" applies.