iViews with "freeze pane" feature like MS Excel

We would like to emulate the MS Excel feature known as "freeze panes" in the iViews that drive BW reports. I would assume that the delivered iViews for viewing BW reports do not have this today and it would not be a simply configuration setting. Therefore, how could this be accomplished? Would it require building a brand new iView in say Java that would support such a feature whereby any BW report could then be viewed?