Customize grid layout

Customize grid layout

[Zhichu Chen]

Dear TeXers,

Is it possible to define the layout like:
\setuplayout
   [grid=yes%
   ,lines=6%
   ,gridstyle={1,1,1,3.5,1,1}%
   ]
so that I can have 6 lines per page, but the 4th line skips will be 
3.5\baselineskip.
For your information, the blank between the first 3 lines and the rest 
ones is used to
display the page number (it's not a joke although April is close).

I was thinking putting an invisible rule after each CJK glyph as a font 
feature, and
the height of the rule changes every 6 lines starting from 4. But 
\linenumber seems to
be an MKII-only counter.

Any suggestions?

-- 
Best regards,
ℤhichu ℂhen

Shanghai Institute of Applied Physics
No. 2019, Jialuo Road
Jiading, Shanghai, P.R.China
Tel: +86-21-39194888

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________