@demo with CompositePlot...how to see both plots?

[rkurchin]

I'm trying to do a @demo visualization with some sliders that affect the output on two different plots, but I can't seem to get it to display both plots at the same time.

Here's some pseudocode to give you an idea of what I'm doing and what I've tried:

@demo for a in a_min:a_step:a_max, b in b_min:b_step:b_max
    calc_results = do_some_calculations(a, b)
    p1 = plot(calc_results)
    plot!(p1, more_stuff)
    p2 = plot(whatever_else)
    plot!(p2, even_more_stuff)
    # now here are several things that *don't* work...
    plot(p1, p2) # this gives only the sliders and the second plot
    CompositePlot([p1, p2]) # same thing, just sliders and p2
    show(CompositePlot([p1, p2]) # this gives a TON of text that gets truncated
end

Is this a bug or do I have the syntax wrong?