Thanks Hraban,

That should b= e fine, I've tried to increase the margins as well, but not sure that&#= 39;s the issue as I can perfectly place text with \inmargin directly, just = not with the numbercommand.

MWE:

\starttext
\setuplayout[margin=3D2cm, leftmargin=3D2cm, rightmar= gin=3D2cm]

\showframe
\showlayout

\setupcaption[figure][lo= cation=3D{rightmargin}]
\startplacefigure[title=3DCow] \externalfigure[c= ow] \stopplacefigure

\define[1]\MyFormulaNumber{\inleftmargin{#1}}\setupformula[numbercommand=3D\MyFormulaNumber]

\inleftmargin{Left= Margin Text}
\inrightmargin{Right Margin Text}

\startplaceformul= a[reference=3Deq1] \startformula c^2 =3D a^2 + b^2 \stopformula \stopplacef= ormula
\stoptext

Adam

On Sun, Mar 21, = 2021 at 8:31 PM Henning Hraban Ramm <t= exml@fiee.net> wrote:

> Am 21.03.2021 um 20:56 schrieb Adam Reviczky <reviczky@gmail.com>:
>
> Thanks Hraban,
>
> I've tried the numbercommand as well, but that also just makes the= formula number disappear, unless I am doing something wrong.
>
> The framing as per the math manual (manuals/math/math-framing.tex) how= ever does work, so not sure:
> \setupformula[numbercommand=3D{\inframed[framecolor=3Dgreen]}]

Are your margins actually non-zero? (\setuplayout)
Maybe check with \showlayout

Hraban
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