Re: multiple EXPORT_LATEX_HEADER lines

[Jeremie Juste]

Eric S Fraga <e.fraga@ucl.ac.uk> writes:
>
> This is a standard syntax for adding values to a property.  From the info 
> manual:
>
> If you want to add to the value of an existing property, append a ‘+’ to
> the property name.  The following results in the property ‘var’ having
> the value ‘foo=1 bar=2’.
>
>      #+PROPERTY: var  foo=1
>      #+PROPERTY: var+ bar=2

Many thanks for the info. So, with respect the original post, the behavior of 
the following
code is to be expected?

* hello
  :PROPERTIES:
  :EXPORT_LATEX_HEADER: \makeatletter
  :EXPORT_LATEX_HEADER+: \@setplength{refvpos}{\useplength{toaddrvpos}} 
  :EXPORT_LATEX_HEADER+: \makeatother
  :END:

Best regards,
Jeremie

PS: The automatic time stamp of the sender when replying is a nice piece
of technology. I guess, I have to read the gnus manual again. :-)
> On Friday, 12 Jun 2020 at 14:01, Jeremie Juste wrote: