mdframed has an option of frametitlealignment, but the manual does not list possible values. I wonder if it accepts values other than left, right and center (apart from derivatives like raggedleft).
Is it possible to place the title in a custom place (e.g. 30% from left)?
If not, how to set padding (margin) for the title? I simply moved the title by
frametitle=\hspace{1em}Title
but the problem is that I use the title in the page header, and do not want this hspace there.
EDIT: MWE for clarification of the problem.
\documentclass{article}
\usepackage{mdframed}
\usepackage{lipsum}
\makeatletter
\mdfdefinestyle{example}{settings={\@mkboth{\mdf@frametitle}{\mdf@frametitle}}}
\makeatother
\pagestyle{headings}
\begin{document}
\begin{mdframed}[style=example,frametitle=\hspace*{0.30\linewidth}Some Title 1]
\lipsum[1]
\end{mdframed}
\end{document}

As can be seen, by adding \hspace to the frametitle, not only the frame title shifts, but also the page header will do. I need to customize the position of frame title, but not the page header.
In fact, I cannot alter frametitle, as its value is exactly used in the page header. I need to align the frame title with frametitlealignment.
