I have posted  a question in tex stack exchangeCustomize right to left list
in context
<http://tex.stackexchange.com/questions/294627/customize-right-to-left-list-in-context/294631?noredirect=1#comment713701_294631>
My aim is to obtain right to left  items arranged  in  multi-column, if I
use
\startitemize [s,columns,three] [margin=1em]
the result is three column where first column start from left side of page,
but I want it to start from right side of page.

I can use \startcolumns[direction=left]\startitemize \item First \item
Second \item Third \stopitemize \stopcolumns
but I think it look better if there is a key direction=left for the
\startitemize environment such as used in columns environment.