If you mean

\setuphead

[chapter]

[beforesection={\pageinjection[chapter:start]},

insidesection={\pageinjection[chapter:insert][name=\structureuservariable{image}][name=\structureuservariable{scale}]}]

\starttext

\startchapter[title={My title}] [image=Chapter1.jpg][scale=500]

\setups[pageinjection:chapter:image]

\dorecurse{7}{\samplefile{lorem}}

\stopchapter

I tried that (and a few other combinations of the kind) but to no effect.

Julian

On 10/3/22 16:35, Aditya Mahajan via ntg-context wrote:
> On Thu, 10 Mar 2022, jbf via ntg-context wrote:
>
>> Am endeavouring to explore Wolfgang's very 'elegant' solution to this
>> facing page challenge. The exploration has included a look at
>> base/mkxl/page-inj.mklx (thanks Sreeram for reminding me of this) where
>> I see immediately that the approach is experimental and where it says
>> also that 'probably more alternatives will be added'. I wonder if that
>> last phrase also includes the ability to manipulate the image(s) either
>> generally or in individual cases?
>>
>> So, for example., say I need (and in fact I do!) to change some aspect
>> of individual images, e.g. I might want to scale=500, or fiddle with
>> width/height of a particular image. At the moment I cannot see a way of
>> doing this for each image. I wondered if the commented out setups in the
>> response to this question might be a clue, but so far haven't been able
>> to get that to have any effect.
> Couldn't you just pass scale as a key-value parameter, similar to how `name` is passed in Wolfgang's solution?
>
> Aditya
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