How to change org-mode settings to always include a certain preamble

Question

So currently I have this preamble for all my org files. Does anyone know how to make org-mode default to the above settings whenever I open a .org file?

#+STARTUP: latexpreview
#+LATEX_HEADER: \usepackage{tcolorbox}
#+LATEX_HEADER: \usepackage{amsmath}
#+LATEX_HEADER: \newcommand{\vsp}{\vspace{4mm}}
#+LATEX_HEADER: \newcommand{\la}{\leftarrow}
#+LATEX_HEADER: \newcommand{\ra}{\rightarrow}
#+LATEX_HEADER: \newcommand{\ua}{\uparrow}
#+LATEX_HEADER: \newcommand{\da}{\downarrow}

Answer 1

I think you can achieve this through M-x org-customize:

• Entry Org startup / Org startup with latex preview

• Entry Org Export LaTeX / Org Latex Packages Alist

  Alist of packages to be inserted in every LaTeX header

• Entry Org Export LaTeX / Org Latex Classes

  Alist of LaTeX classes and associated header and structure [...] The HEADER-STRING is the header that will be inserted into the LaTeX file.