Two different yaxes with lattice plots

In "normal" plots, I can do an axis at side = 2 and a different one at
side = 4.  I've not been able to figure out how to do the same thing
with lattice plots.  The scales list can have only one sublist named
y.  I had thought of using a separate viewport alongside with the text
for the axis label, but I can't see how I could get the ticks to work.

Ideas appreciated.

Thanks.

Patrick Connolly
HortResearch
Mt Albert
Auckland
New Zealand 
Ph: +64-9 815 4200 x 7188
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