forced-blank markup for parts

[Kieren MacMillan]

Hello all,

I have a "notes" file with all the musical content for my quartet (2 vlns, 
cello, and piano). Like the good content-presentation separator I try to be, I 
have \editionTweaks variables in my "score" files, which I simultaneous-ify 
with the content variable, e.g.

  \new Staff = "Staff_cello" << \global \celloNotes \editionTweaks >>

This works very well for most things ("simple" page turns, MetronomeMark 
tweaks, etc.).

Now, I want to force a page turn with the markup "V.S." -- or even with a "This 
page intentionally left blank." full-page notice -- and I can't quite figure 
out how to "inline" this kind of markup. Any suggestions? [p.s. Using \tag in 
the content will be a last resort, since I'm trying not to mix presentation 
with content.]

Thanks,
Kieren.