[Tex/LaTex] How to make frame[t] as global default

Question

In Beamer, I would like to set frame[t]{ ... } as a global default of frame.

How is it possible to set the option t as default?

p.s. I know that it is possible by defining my custom command like framet{ ... } with \renewcommand. But I'm looking for another way which achieve it without modifying the name of command frame, because I'm using LyX.

\documentclass[english,dvipdfmx]{beamer}
\begin{document}

\begin{frame}{Sample Frame 1}
Normally, the text is placed in the middle (default).
\end{frame}

\begin{frame}[t]{Sample Frame 2}
If you set the option `t' to the frame command, the text is placed at the top.
I would like make this as default.
\end{frame}

\end{document}

Answer 1

You can pass the [t] option to the class like

\documentclass[t]{beamer}

so that all frames are top aligned. If any frame needs to be center aligned then use \begin{frame}[c] (or [b] for bottom alignment) to that single frame.

\documentclass[t]{beamer}
\begin{document}
  \begin{frame}
    Some text
  \end{frame}
  \begin{frame}
    Again some more
  \end{frame}
\end{document}