Fabrice Couvreur schrieb am 22.10.2019 um 10:46:
> Hello,
> I can not adjust the bottom line of my header even after playing with 
> location= and boffset.=

1. Try to create shorter examples, e.g. \setuplayout can be reduced to 
the header setting.

2. You header is not large enough for two lines of text.

3. Use \offset to change the vertical position of the frame in the middle.

\setuplayout
   [header=1cm,
    headerdistance=1cm]

\setupbackgrounds [header] [text] [frame=on]

\defineframed [headerframed] [align=normal]

\setupheadertexts
   [{\offset[y=-\strutdp]{\headerframed{Middle}}}]

\setupheadertexts
   [\headerframed {Left\\Left}]
   [\headerframed {Right}]

\starttext
\samplefile{dawkins}
\stoptext

Wolfgang