Image of preamble dialog window. This is a mini editor with the following text displayed:

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{drm}

\usepackage{pifont}
\usepackage{graphicx}

\AtBeginDocument{%
  \pagestyle{empty}%
  \setcounter{secnumdepth}{0}%
}