1) see http://www.datatables.net/ref#bSortable - set bSortable: false for any column using aoColumns or aoColumnDefs
2) see http://www.datatables.net/ref#sDom - use the sDom to add arbitrary divs to the page, use css to style/position it, use javascript/jquery to fill it with whatever you want
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2) see http://www.datatables.net/ref#sDom - use the sDom to add arbitrary divs to the page, use css to style/position it, use javascript/jquery to fill it with whatever you want