[O] Loading several latex classes for ox-latex

[Julien Cubizolles]

How can I run several add-to-list after a given package is loaded ? I
could of course do multiples:

(eval-after-load 'package_name '(add-to-list 'element 'list))

but I'm sure there's a more elegant way.

I tried the following:
--8<---------------cut here---------------start------------->8---
(eval-after-load 'ox-latex
  (progn '(add-to-list 'org-latex-classes
                       '("mpsi_beamer" "\\documentclass{mpsi_beamer}\n 
[NO-DEFAULT-PACKAGES]"
                         ("\\section{%s}" . "\\section*{%s}")
                         ("\\subsection{%s}" . "\\subsection*{%s}")
                         ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
                         ))
         '(add-to-list 'org-latex-classes 
                       '("mpsi" "\\documentclass[cours,Version,colonne]{mpsi}"
                         ("\\section{%s}" . "\\section*{%s}")
                         ("\\subsection{%s}" . "\\subsection*{%s}")
                         ))
         ))
--8<---------------cut here---------------end--------------->8---

but only the second one (mpsi) is loaded.

Julien.