Additional title after enumerations-head

["Stefan Müller" <warrence.stm@gmx.de>]

Hi list,

in one of my documents (MkIV) I defined several different enumerations 
with \defineenumerations.  Currently their only differences are in the 
values of "text=" and "style=".  With the following I got what I wanted 
so far:

\defineenumeration[lemma][text=Lemma, location=serried, width=fit, 
style=slanted, indenting=yes, prefix=yes, prefixsegments=chapter, 
indentnext=no]

\starttext
\startlemma
	Some slanted text.
\stoplemma
\stoptext

Results in "Lemma 1  Some slanted text", head in bold and the text slanted.

But now I have some lemmata that should get some kind of title, for example:
"Lemma 1 (Farkas Lemma)  Some slanted text."

How can I achieve this without defining a new description for every 
"special case"?  I tried something like "\startlemma[right={My title}]" 
without avail.  I want the "title", "(Farkas Lemma)" in the above 
example, to be placed before the added "distance".  In addition I would 
like to be able to set (within \definedescription for all lemmata would 
be enough) whether I want the "title" to be bold (like the head "Lemma 
1") or not.  Is all or some of this possible?  I'm pretty confident that 
ConTeXt can already handle this, but I don't know how.

Thanks in advance for any hints!

Kind regards,
Stefan
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