How to show the \title headings in ToC?

Question

My document is organized as following:

\title[Some title]
\section[Section 1]
\section[Section 2]

etc.

When I use \completecontents command to print a ToC, I only get the section titles (which are numbered) and not the titles (\title entries). Is there a way to tell ConTeXt to print \title entries into ToC? Ideally, I prefer a table of contents that looks something like this:

Some Title

1. Section 1 xx 2. Section 2 yy

Another Title

1. Section in second title zz

Answer 1

Here is a complete compileable example of what you want.

\setuphead[title][
    incrementnumber=yes, % keep an internal title counter+list
    number=no]  % don't display the counter

% Manually specify the composition of the section and subsection numbers
\setuphead[section][sectionsegments=section]
\setuphead[subsection][sectionsegments=section:subsection]   

% Redefine the toc list to include titles
\definecombinedlist[content][title, section]

\starttext
    % Place the toc
    \placecontent

    % Place some sections to see what their numbers look like.
    \title{T1}
      \section{S1}
        \subsection{Sb1.1}
        \subsection{Sb1.2}
      \section{S2}
        \subsection{Sb2.1}

    \title{T1}
      \section{S1}
        \subsection{Sb1.1}
\stoptext

I got the sectionsegments key from phg. For examples on styling the ToC, see the ConTeXt Garden wiki article on the table of contents, section Modifying the default ToC.