diff --git a/todonotes.dtx b/todonotes.dtx
index 12a3f26..8cf2556 100755
--- a/todonotes.dtx
+++ b/todonotes.dtx
@@ -862,6 +862,23 @@
 % \todoTrans[inline]{damplokomotiv}
 %
 %
+% \pagebreak[4]
+% \subsubsection{Numbered todonotes}
+% 
+% The inserted todonotes can be argumented with the current subsubsection number.
+% The code is shown below.
+% \newcommand{\ntodo}[2][]{\todo[#1]{\thesubsubsection{}. #2}}
+% \begin{verbatim}
+% \newcommand{\ntodo}[2][]{\todo[#1]{\thesubsubsection{}. #2}}
+% \end{verbatim}
+% By changing |\thesubsubsection| to |\thesection|, the current section number 
+% can be inserted instead of the subsubsection number.
+% The result looks \ntodo{A numbered todo.} like. 
+% Which were generated by the code
+% \begin{verbatim}
+% \ntodo{A subsection numbered todo.}. 
+% \end{verbatim}
+%
 %
 %
 %