Thanks Wolfgang, this works. I knew this from a previous discussion but I was trying the line in m-streams.tex

regards,

Salil


From: Wolfgang Schuster <schuster.wolfgang@googlemail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Hans Hagen <pragma @wxs.nl>
Sent: Fri, April 9, 2010 10:53:19 AM
Subject: Re: [NTG-context] streams! atleast the left||right synchronization mechanism

Am 09.04.10 09:45, schrieb Salil Sayed:
Hi,

As I am moving from mkII to mkIV with my thesis manuscript, I need to make the 'left||right synchronization mechanism' to work. I worked beautifully in mkII. I looked in the source of the module but could not make out where the issue is. I errors I get today begin like this.
Remove the \endinput at the begin of the file (line 28) in page-str.mkiv and remake the format.
what is this (  \v!  ) thing? where can I get the clues? Does it come from Tex or LuaTex programming?
http://wiki.contextgarden.net/System_Macros/Scratch_Variables

Wolfgang