Edit the Prompt of Summary Field "Total" in an OAF Page Release 11i

Hi Experts,

In Release 11i, Is there a way to rename a summary column's Prompt "Total" to any other value, like "New Total". Refer the image attached.

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I tried doing a controller extension with the below code. But. its not working.

OATableBean tableBean=(OATableBean)oawebbean.findIndexedChildRecursive("ItemsTableRN");

    OAColumnBean columnBean=(OAColumnBean)tableBean.findIndexedChildRecursive("Total");

    OASortableHeaderBean colHeaderBean=(OASortableHeaderBean)columnBean.getColumnHeader();

    colHeaderBean.setText("New Total ");

Please, any inputs.

Thank you in advance.