Combo Chart - Can I specify different palette colors for Y1 and Y2 axis?

[Sandy10]

I just figured out to specify the 2nd set of colors after the 1st set in the Palette.  Seems so easy now :)  ;D
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Does anyone know if it is possible to choose colors for Y1 and also for Y2 ?
I can set Y1 colors and let Y2 get what Cognos chooses, but I want to also
specify the Y2 colors.
A predecessor at my company looks like they achieved this in C8 in another report, but I can't figure out how.   Thank you very much.
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Hi.  I'm actually using Cognos 10, with Legacy Charts selected.
I modified the Palette, and Y1 colors are good.  I don't want Y2 to match, because then the line color will blend in with the chart and you can't see it.

The 1st Series(Y1) is a Stacked Bar, with a Segmentation Code Sorted by a Sort Key and a revenue measure.   
I modified the Palette colors, and this chart looks great.

The 2nd Series(Y2) is a line Chart, with the same Segmentation Code Sorted, and with a percent measure.   

How can I assign a different color palette to the Y2 Axis ??
It mentioned this in the C8 Report Studio Guide, but didn't make sense, because the palette property is on the entire Chart.

Sort Key Code:
CASE [Segmentation Code]
WHEN 'GREEN' THEN 1
WHEN 'YELLOW' THEN 2
WHEN 'BLUE' THEN 3
WHEN 'RED' THEN 4
ELSE 5
END

Thank you !!