On Sun, 24 Oct 2021 at 00:02, Bruce Horrocks via = ntg-context <ntg-context@ntg.nl> wrote:

> On 23 Oct 2021, at 14:51, Gerben Wierda via ntg-context <ntg-context@ntg.nl> wr= ote:
>
>
>> On 23 Oct 2021, at 15:34, Wolfgang Schuster <wolfgang.schuster.list= s@gmail.com> wrote:
>>
>> =EF=BB=BF Gerben Wierda via ntg-context schrieb am 23.10.2021 um 1= 5:20:
>>> I=E2=80=99d like a book with chapters to have sections/parts, = e.g. something that groups a few \chapter elements together. Is there suppo= rt for this in LMTX? I.e. in such a way that it also shows up in the table = of contents?
>>
>> You can use \part.
>
> Yes. Thanks. But that leads to additional questions:
> - how do I get the parts to show up in the table of contents? Because = I tried \part but it did not show up
> - how do I let chapters number on (not restart in each part, and not a= x.y number but simply =E2=80=982. Chapter=E2=80=99
> - what is a good way to create actual RHS =E2=80=98title=E2=80=99 page= s for each chapter?
> - how do I get parts to number with Roman numerals?

I define my own versions of \part and \chapter (called \Part and \Chapter) = and specify a different display style using setups. The definition for \Par= t is below, \Chapter is very similar so I haven't included it.

%% Double rule above part title
\startsetups PartSetup
=C2=A0\setupheader[state=3Dempty]
=C2=A0\par
=C2=A0\startMPcode
=C2=A0 =C2=A0draw (0,2mm)--(TextWidth,2mm) withpen pensquare scaled 1.5mm ;=
=C2=A0 =C2=A0draw (0,0)--(TextWidth,0) withpen pensquare scaled 1.0mm ;
=C2=A0 =C2=A0clip currentpicture to unitsquare yscaled 1cm xscaled TextWidt= h
=C2=A0\stopMPcode
\stopsetups

\define[2]\placePartTitle{\midaligned{#2}}
%% The above line is what I use. You want Roman numerals so maybe adapt it = to:
%% \define[2]\placePartTitle{\midaligned{\convertnumber[Romannumerals][#1] = #2}}

\definehead [Part] [part]
\setuphead[Part]
=C2=A0[ page=3Dright,
=C2=A0 =C2=A0placehead=3Dyes,
=C2=A0 =C2=A0style=3D{\stylePartTitle}, %% this is just from a \definefont<= br> =C2=A0 =C2=A0before=3D{\setups{PartSetup}},
=C2=A0 =C2=A0command=3D\placePartTitle,
=C2=A0]

With \setuplayout[location=3Ddoublesided] this then comes out on the RHS.
For the ToC, I use:

\setuplist [alternative=3Db]
\setuplist [Part]
=C2=A0[ headnumber=3Dno,
=C2=A0 =C2=A0margin=3D0cm,
=C2=A0 =C2=A0width=3D0cm,
=C2=A0 =C2=A0distance=3D0cm,
=C2=A0 =C2=A0style=3D\tocStylePartTitle,
=C2=A0]
\setuplist [Chapter]
=C2=A0[ headnumber=3Dno,
=C2=A0 =C2=A0margin=3D1em,
=C2=A0 =C2=A0width=3D0cm,
=C2=A0 =C2=A0distance=3D0cm,
=C2=A0]
\setupcombinedlist [content] [list=3D{Part,Chapter}]

then \placecontent prints the chapter titles indented under each part.

HTH
=E2=80=94
Bruce Horrocks
Hampshire, UK

=E2=80=94
Bruce Horrocks
Hampshire, UK

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