> I am not sure I understand your question. Sorry. You read my mind. > > The snippet from the OP will collate all three LaTeX header lines into a > single line on export, which is expected in terms of org's > behaviour. This is exactly what I was referring to. If the behavior of :EXPORT_LATEX_HEADER: and :EXPORT_LATEX_HEADER:+ and all the property keys with a (+) prefix is to collate the line then it is the expected behavior.
Then keys such as :EXPORT_LATEX_HEADER: might be misleading for the user as he may want to use multiple line header. One solution might be to add another suffix say :EXPORT_LATEX_HEADER++: to generate multiple lines during the export. But I'm must quickly add that I don't have the knowledge to do it neither to understand the implication of this change. Best regards, Jeremie PS: > (setq message-citation-line-format "On %A, %e %b %Y at %R, %N wrote:") Many thanks for the info. I was also given this precious reference: (info "(sc) What Supercite Does")