[NTG-context] presets for setlayerframed

[Aditya Mahajan]

Hi,

Is it possible to set 'presets' for the framed settings of 
\setlayerframed?

For example:

\definelayer[text]
\definelayer[annotate]
\setupbackgrounds[text][background={text,foreground,annotate}]

\starttext

Testing layers:

\setlayerframed[annotate][x=1cm,y=1cm][frame=off, align=middle]
     {\input ward \par}

\setlayerframed[annotate][x=1cm,y=4cm][frame=off, align=middle]
     {\input tufte \par}

\stoptext

I don't want to repeat the `frame=off, align=middle` setting everytime (in 
may actual usecase, these are much more complicated settings). How can I 
do that?

Thanks,
Aditya