So, I posted my question too soon. To use the export option as properties, I had to add EXPORT_ prefix.
Example, not this: :PROPERTIES: :LANGUAGE: en :AUTHOR: Me :FROM_ADDRESS: 4 place of nowhere :END: But this: :PROPERTIES: :EXPORT_LANGUAGE: en :EXPORT_AUTHOR: Me :EXPORT_FROM_ADDRESS: 4 place of nowhere :END: Sorry. Sébastien Gendre <s...@k-7.ch> writes: > Hello, > > I try to use Org-mode and org-koma-letter to make letters. > > I want to have one file where each first level headline as a letter. So, > I tried to define the export settings of org-koma-letter as headline > properties. With no success. > > > Here is an example: > > #+begin_src org > > * Example of letter > :PROPERTIES: > :LANGUAGE: en > :AUTHOR: Me > :FROM_ADDRESS: 4 place of nowhere > :EMAIL: m...@example.com > :PHONE_NUMBER: 000-000-000 > :TO_ADDRESS: Someone, 4 place somewhere > :OPENING: Hello, > :CLOSING: Bye. > :DATE: \today > :PLACE: Here > :OPTIONS: foldmarks:nil phone:t email:t > :END: > > This is a test of text, a test of text, a test of text, a test of > text, a test of text, a test of text, a test of text, a test of text, > a test of text, a test of text, a test of text, a test of text, a test > of text, a test of text, a test of text, a test of text, a test of > text, a test of text, a test of text, a test of text, a test of text, > a test of text, a test of text, a test of text, a test of text, a test > of text, a test of text, a test of text, a test of text, a test of > text, a test of text, a test of text, a test of text, a test of text, > a test of text, a test of text, a test of text, a test of text. > > > * Another example of letter > :PROPERTIES: > :LANGUAGE: en > :AUTHOR: Not me > :FROM_ADDRESS: 5 place of nowhere > :EMAIL: not...@example.com > :PHONE_NUMBER: 000-000-001 > :TO_ADDRESS: Someone, 5 place somewhere > :OPENING: Hello there, > :CLOSING: I'll be back. > :DATE: \today > :PLACE: There > :OPTIONS: foldmarks:nil phone:t email:t > :END: > > This is not a test of text, not a test of text, not a test of text, not a > test of > text, not a test of text, not a test of text, not a test of text, not a test > of text, > not a test of text, not a test of text, not a test of text, not a test of > text, not a test > of text, not a test of text, not a test of text, not a test of text, not a > test of > text, not a test of text, not a test of text, not a test of text, not a test > of text, > not a test of text, not a test of text, not a test of text, not a test of > text, not a test > of text, not a test of text, not a test of text, not a test of text, not a > test of > text, not a test of text, not a test of text, not a test of text, not a test > of text, > not a test of text, not a test of text, not a test of text, not a test of > text. > > #+end_src > > After an export with ~(org-koma-letter-export-to-pdf nil t)~, in the > resulted PDF, only the author and date are set. > > Do I do something wrong ? > > Emacs version: 28.2 > Orgmode version: 9.5.5 > > > > Best regards.