Number of incoming and outgoing top pages in Open Transitions reports

The open transistions report seems to limit the incoming and outgoing paths to 6 records: It’s always top 5 and "others"
My question: is it possible to increase the number of records? E.g. I would like to see the top 20 following pages

I tried using the API, but it also shows only 6 records. Is the number of 6 somewhere hardcoded?

(See here for an example call via API
http://demo.piwik.org/index.php?actionType=url&actionName=http%3A%2F%2Fforum.piwik.org%2F&expanded=1&format=XML&module=API&method=Transitions.getTransitionsForAction&idSite=7&period=day&date=2012-12-17
)

Not possible yet, contact us for sponsoring this feature: http://piwik.org/contact-professional-support