It is possible to edit standard 'Work list' in Enterprise portal for Dynamics AX2012?

Apr 1, 2013 at 1:40 PM
We have AX2012 with Enterprise portal 2010.
Now we have a task to edit 'Work list' web part from Default Role Center page:
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We have to add two new fields on this web part.
Question: how can I add new fields on existing web part?