[NTG-context] how to interrupt doublesided in particular instance

[Wolfgang Schuster]

jbf schrieb am 06.05.2020 um 01:31:
> Hi list,
>
> I have a document set up in a standard way 
> (\setuppagenumbering[alternative=doublesided]) to ensure that new 
> chapters always begin on a recto page, but in one particular instance 
> only, I want the new chapter to start on the next (verso) page instead 
> of creating a blank then starting on the recto side.
>
> I thought I might have been able to force that with \page[no] 
> immediately after the previous chapter concluded or before \chapter{My 
> new chapter}, but this command is ignored (and may well be the wrong 
> command to achieve what I want).
>
> Is there a way to interrupt the setup so the new chapter in this case 
> can start on the verso page?

Create a new heading for chapters which can start on left/right pages.

\setuppagenumbering[alternative=doublesided]

\definehead[mychapter][chapter]

\setuphead[mychapter][page=yes]

\starttext

\chapter{Right page}

\chapter{Right page}

\mychapter{New page}

\chapter{Right page}

\stoptext

Wolfgang