Show/Hide subsections in the table of contents of a beamer presentation

Question

I am new in LaTeX and I need some help in doing a beamer presentation. I have a dense table of contents with 6 sections and 15 subsections in total. I would like to have a table of contents which lights up each section one by one and shows only the subsections of the selected section and hide all the other subsections. Like this:

When I light up Section 1

Section 1

• subsection 1

• subsection 2

• subsection 3

Section 2

Section 4

Section 5

Section 6

When I light up Section 2

Section 1

Section 2

• subsection 1

• subsection 2

• subsection 3

Section 4

Section 5

Section 6

Is it possible? How can I do it?

Answer 1

Using this answer, I came to that code:

\documentclass{beamer}

\usepackage{totcount}
\regtotcounter{section}
\usepackage{multido}

\newcommand{\mytableofcontents}[0]{
\multido{\I=1+1}{\totvalue{section}}{
  \begin{frame}<beamer>
  \setcounter{section}{\I}
  \frametitle{Outline}
  \tableofcontents[
    currentsection,
    sectionstyle=show/show,
    subsectionstyle=show/show/hide,
  ]
  \end{frame}
}
\setcounter{section}{0}
}

\begin{document}

\mytableofcontents

\section{Test Section One}
\begin{frame} test  \total{section} \end{frame}
\subsection{Test Subsection One One}
\begin{frame} test\end{frame}
\subsection{Test Subsection One Two}
\begin{frame} test\end{frame}
\subsection{Test Subsection One Three}
\begin{frame} test\end{frame}

\section{Test Section Two}
\begin{frame} test\end{frame}
\subsection{Test Subsection Two One}
\begin{frame} test\end{frame}
\subsection{Test Subsection Two Two}
\begin{frame} test\end{frame}
\subsection{Test Subsection Two Three}
\begin{frame} test\end{frame}

\section{Test Section Three}
\begin{frame} test\end{frame}
\subsection{Test Subsection Three One}
\begin{frame} test\end{frame}
\subsection{Test Subsection Three Two}
\begin{frame} test\end{frame}
\subsection{Test Subsection Three Three}
\begin{frame} test\end{frame}

\end{document}

And here are the first three frames: