I have posted  a question in tex stack exchange

Customize right to left list in context

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.