Where's the article showing User Index feeding Subfile?

Several years ago (I wanna say 1998-1999), I seem to recall seeing an article 
in one
of the trade rags (print, I think, but could'a been online) that showed how to 
use a
SFLPAG=SFLSIZ subfile and a user index to interface with the subfile.  
Advantages: 
Could load from any sequence and display in UI keyed sequence.  Can specify 
options
on several different "pages" and not lose them (like you would in a standard
SFLPAG=SFLSIZ subfile) before processing them.

But googling for this turns up empty; searched most of the trade rag sites that 
I
can think of at the moment.

I'm in the process of developing a new app from scratch, and it should serve as 
a
model for future development, so I'd like to try this one out.

If anyone knows the whereabouts of that article, please let me know.  If it was 
in
the now-deceased Midrange Computing mag, will MCPressOnline necessarily still 
have
it?

TIA, GA

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