Controlling expansed size of af:panelAccordian

I have an af:panelAccordian with a series of af:showDetailItem's and I have received a request to alter the expanded size of the detailItems.
My question is if this possible? Right now, expanding a single af:showDetailItem will consume the entire available space. Is there a way to reduce or control that?
Mark

Yes, you can achieve panel accordions that show more than one showDetail expanded.
See properties like flex and discloseMany http://download.oracle.com/docs/cd/E12839_01/apirefs.1111/e12419/tagdoc/af_panelAccordion.html

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