[NTG-context] Let chapter start on odd page and make the even page before show an image

[Aditya Mahajan]

On Fri, 29 May 2020, Henning Hraban Ramm wrote:

> In a similar setup I wanted to start every chapter with image and short vita the author and came up with the following (of course not without help from our wizards):
>
>
>  \doifelse{\structureuservariable{image}}{}{% if image empty
>  }{%
>  ...
>  }
>    \doifnot{\structureuservariable{vita}}{}{% if vita
>   ...
>      }%
>    }%
>  }%

You can use  `\doifsomething{\structureuservariable{image}}` etc which is slightly more readable than \doifelse{...}\empty{}{} or \doifnot{...}\empty{}.

Aditya