Unfortunately long reports lead to the column headers being hidden form view when scrolling down page.
Simple solution is using a Jquery plugin in the JS OnLoad event as follows:
//This solution rocks! So easy!
//Refer to https://github.com/jmosbech/StickyTableHeaders
$.get( "plugins/jqueryStickyTableHeaders/jquery.stickytableheaders.min.js", function() {
$('#legend').stickyTableHeaders(); //Where legend is the name of the table that contains your report data
//console.log( "Load was performed." );
});
Enjoy :-)