Kerning

["Bart C. Wise" <bntgcontext@wiseguysweb.com>]

I am trying to change the spacing of a chapter title head.  I found the 
"\kern" command; however, I could not get that to work over a string of text.

Then I found the following code:
\def\dolist{\afterassignment\dodolist\let\next= }
\def\dodolist{\ifx\next\endlist \let\next\relax
   \else \\\let\next\dolist \fi
   \next}
\def\endlist{\endlist}
\def\track#1\by#2{\def\\{\next\kern#2}%
   \leavevmode \hbox{\expandafter\dolist#1\endlist}}

Then I tried:

def\MyChapterCommand#1#2{
        \framed[align=center,frame=off,width=\textwidth]{
		\vbox{
			\track{This is a Test} \by{.2em}
			\track #2  \by{.2em}
		}
	}
\setuphead[chapter][
    command=\MyChapterCommand
}

The output from the \track{This is a Test} \by{.2em} works.  However, the 
second track command (\track #2 \by{0.2em}) fails.

I spent many hours last night trying to change the kerning.  What I want is 
something like: \kern{TEXT}{KERNING AMOUNT}.  

What's available, or how do I fix the track command above.  By the way,I'm 
running mkii.

Thanks,
Bart
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