Can modes be used for content control?

["Idris Samawi Hamid ادريس سماوي حامد via ntg-context" <ntg-context@ntg.nl>]

Dear gang,

For creating/authoring content in ConTeXt: Can modes or the like be used  
for content control? For example, someone wants to write at least two  
versions of a book managed from a single file. So, e.g., we may have

a) abridged content
b) unabridged content - includes a)
c) abridged content + translation
d) unabridged content + translation
[:]

One can author and organize this in XML - pre-ConteXt - but perhaps one  
prefers to write in ConTeXt (take advantage of shortcuts etc.). So maybe

\defineparagraphs[unabridged]
\defineparagraphs[abridged]
\defineparagraphs[translation]

Then one authors the complete work in a single project, but you can  
produce a variety of versions, depending on the mode chosen:

\definemode[unabridged]
etc.

Can one do this in context? If so, does anyone have some working example  
of how to do it? Might even be worth a MyWay if not too unwieldy.. Thank  
you in advance!

Best wishes
Idris
-- 
Idris Samawi Hamid, Professor
Department of Philosophy
Colorado State University
Fort Collins, CO 80512
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