So glad I never used the inbuilt help file before. Image paths are even working without the quotes ... at least for me. Quotes recommended, mandatory or can be spared?
Could it be that the raster previews for Transfer are in RGB even in a CMYK document? I noticed a small difference in colour. E.g. instead of K10 it was C10M7Y5K0. I want to report this before you are running into trouble with the Colour Separation panel we are going to see in APu 1.9.1.